diff --git a/package-lock.json b/package-lock.json
index ae9cf63..11e3743 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
       "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
       "requires": {
-        "mime-types": "2.1.18",
+        "mime-types": "~2.1.18",
         "negotiator": "0.6.1"
       }
     },
@@ -23,7 +23,7 @@
       "resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-1.0.9.tgz",
       "integrity": "sha1-VbtemGkVB7dFedBRNBMhfDgMVM8=",
       "requires": {
-        "acorn": "2.7.0"
+        "acorn": "^2.1.0"
       }
     },
     "align-text": {
@@ -31,9 +31,9 @@
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "requires": {
-        "kind-of": "3.2.2",
-        "longest": "1.0.1",
-        "repeat-string": "1.6.1"
+        "kind-of": "^3.0.2",
+        "longest": "^1.0.1",
+        "repeat-string": "^1.5.2"
       }
     },
     "amdefine": {
@@ -42,9 +42,17 @@
       "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU="
     },
     "ansi-regex": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
-      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ=="
+    },
+    "ansi-styles": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+      "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+      "requires": {
+        "color-convert": "^2.0.1"
+      }
     },
     "array-flatten": {
       "version": "1.1.1",
@@ -57,9 +65,9 @@
       "integrity": "sha1-sqRdpf36ILBJb8N2jMJ8EvqRan0="
     },
     "async": {
-      "version": "1.5.2",
-      "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
-      "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
+      "version": "3.2.6",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.6.tgz",
+      "integrity": "sha512-htCUDlxyyCLMgaM3xXg0C0LW2xqfuQ6p05pCEIsXuyQ+a1koYKTuBMzRNwmybfLgvJDMd0r1LTn4+E0Ti6C2AA=="
     },
     "body-parser": {
       "version": "1.18.2",
@@ -67,15 +75,15 @@
       "integrity": "sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=",
       "requires": {
         "bytes": "3.0.0",
-        "content-type": "1.0.4",
+        "content-type": "~1.0.4",
         "debug": "2.6.9",
-        "depd": "1.1.2",
-        "http-errors": "1.6.3",
+        "depd": "~1.1.1",
+        "http-errors": "~1.6.2",
         "iconv-lite": "0.4.19",
-        "on-finished": "2.3.0",
+        "on-finished": "~2.3.0",
         "qs": "6.5.1",
         "raw-body": "2.3.2",
-        "type-is": "1.6.16"
+        "type-is": "~1.6.15"
       }
     },
     "bytes": {
@@ -93,8 +101,8 @@
       "resolved": "https://registry.npmjs.org/center-align/-/center-align-0.1.3.tgz",
       "integrity": "sha1-qg0yYptu6XIgBBHL1EYckHvCt60=",
       "requires": {
-        "align-text": "0.1.4",
-        "lazy-cache": "1.0.4"
+        "align-text": "^0.1.3",
+        "lazy-cache": "^1.0.3"
       }
     },
     "character-parser": {
@@ -107,8 +115,8 @@
       "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-3.4.28.tgz",
       "integrity": "sha1-vxlF6C/ICPVWlebd6uwBQA79A/8=",
       "requires": {
-        "commander": "2.8.1",
-        "source-map": "0.4.4"
+        "commander": "2.8.x",
+        "source-map": "0.4.x"
       },
       "dependencies": {
         "commander": {
@@ -116,7 +124,7 @@
           "resolved": "https://registry.npmjs.org/commander/-/commander-2.8.1.tgz",
           "integrity": "sha1-Br42f+v9oMMwqh4qBy09yXYkJdQ=",
           "requires": {
-            "graceful-readlink": "1.0.1"
+            "graceful-readlink": ">= 1.0.0"
           }
         }
       }
@@ -126,8 +134,8 @@
       "resolved": "https://registry.npmjs.org/cliui/-/cliui-2.1.0.tgz",
       "integrity": "sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=",
       "requires": {
-        "center-align": "0.1.3",
-        "right-align": "0.1.3",
+        "center-align": "^0.1.1",
+        "right-align": "^0.1.1",
         "wordwrap": "0.0.2"
       },
       "dependencies": {
@@ -138,10 +146,18 @@
         }
       }
     },
-    "code-point-at": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
-      "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c="
+    "color-convert": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+      "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+      "requires": {
+        "color-name": "~1.1.4"
+      }
+    },
+    "color-name": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA=="
     },
     "commander": {
       "version": "2.6.0",
@@ -153,7 +169,7 @@
       "resolved": "https://registry.npmjs.org/constantinople/-/constantinople-3.0.2.tgz",
       "integrity": "sha1-S5RdmTeQe82Y7ldRIsOBdRZUQUE=",
       "requires": {
-        "acorn": "2.7.0"
+        "acorn": "^2.1.0"
       }
     },
     "content-disposition": {
@@ -223,11 +239,21 @@
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
+    "emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A=="
+    },
     "encodeurl": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
       "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
     },
+    "escalade": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.2.tgz",
+      "integrity": "sha512-ErCHMCae19vR8vQGe50xIsVomy19rg6gFu3+r3jkEO46suLMWBksvVyoGgQV+jOfl84ZSOSlmv6Gxa89PmTGmA=="
+    },
     "escape-html": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -243,36 +269,36 @@
       "resolved": "https://registry.npmjs.org/express/-/express-4.16.3.tgz",
       "integrity": "sha1-avilAjUNsyRuzEvs9rWjTSL37VM=",
       "requires": {
-        "accepts": "1.3.5",
+        "accepts": "~1.3.5",
         "array-flatten": "1.1.1",
         "body-parser": "1.18.2",
         "content-disposition": "0.5.2",
-        "content-type": "1.0.4",
+        "content-type": "~1.0.4",
         "cookie": "0.3.1",
         "cookie-signature": "1.0.6",
         "debug": "2.6.9",
-        "depd": "1.1.2",
-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "etag": "1.8.1",
+        "depd": "~1.1.2",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
         "finalhandler": "1.1.1",
         "fresh": "0.5.2",
         "merge-descriptors": "1.0.1",
-        "methods": "1.1.2",
-        "on-finished": "2.3.0",
-        "parseurl": "1.3.2",
+        "methods": "~1.1.2",
+        "on-finished": "~2.3.0",
+        "parseurl": "~1.3.2",
         "path-to-regexp": "0.1.7",
-        "proxy-addr": "2.0.3",
+        "proxy-addr": "~2.0.3",
         "qs": "6.5.1",
-        "range-parser": "1.2.0",
+        "range-parser": "~1.2.0",
         "safe-buffer": "5.1.1",
         "send": "0.16.2",
         "serve-static": "1.13.2",
         "setprototypeof": "1.1.0",
-        "statuses": "1.4.0",
-        "type-is": "1.6.16",
+        "statuses": "~1.4.0",
+        "type-is": "~1.6.16",
         "utils-merge": "1.0.1",
-        "vary": "1.1.2"
+        "vary": "~1.1.2"
       },
       "dependencies": {
         "finalhandler": {
@@ -281,12 +307,12 @@
           "integrity": "sha512-Y1GUDo39ez4aHAw7MysnUD5JzYX+WaIj8I57kO3aEPT1fFRL4sr7mjei97FgnwhAyyzRYmQZaTHb2+9uZ1dPtg==",
           "requires": {
             "debug": "2.6.9",
-            "encodeurl": "1.0.2",
-            "escape-html": "1.0.3",
-            "on-finished": "2.3.0",
-            "parseurl": "1.3.2",
-            "statuses": "1.4.0",
-            "unpipe": "1.0.0"
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "on-finished": "~2.3.0",
+            "parseurl": "~1.3.2",
+            "statuses": "~1.4.0",
+            "unpipe": "~1.0.0"
           }
         },
         "ipaddr.js": {
@@ -304,7 +330,7 @@
           "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.3.tgz",
           "integrity": "sha512-jQTChiCJteusULxjBp8+jftSQE5Obdl3k4cnmLA6WXtK6XFuWRnvVL7aCiBqaLPM8c4ph0S4tKna8XvmIwEnXQ==",
           "requires": {
-            "forwarded": "0.1.2",
+            "forwarded": "~0.1.2",
             "ipaddr.js": "1.6.0"
           }
         },
@@ -314,18 +340,18 @@
           "integrity": "sha512-E64YFPUssFHEFBvpbbjr44NCLtI1AohxQ8ZSiJjQLskAdKuriYEP6VyGEsRDH8ScozGpkaX1BGvhanqCwkcEZw==",
           "requires": {
             "debug": "2.6.9",
-            "depd": "1.1.2",
-            "destroy": "1.0.4",
-            "encodeurl": "1.0.2",
-            "escape-html": "1.0.3",
-            "etag": "1.8.1",
+            "depd": "~1.1.2",
+            "destroy": "~1.0.4",
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "etag": "~1.8.1",
             "fresh": "0.5.2",
-            "http-errors": "1.6.3",
+            "http-errors": "~1.6.2",
             "mime": "1.4.1",
             "ms": "2.0.0",
-            "on-finished": "2.3.0",
-            "range-parser": "1.2.0",
-            "statuses": "1.4.0"
+            "on-finished": "~2.3.0",
+            "range-parser": "~1.2.0",
+            "statuses": "~1.4.0"
           }
         },
         "serve-static": {
@@ -333,9 +359,9 @@
           "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.13.2.tgz",
           "integrity": "sha512-p/tdJrO4U387R9oMjb1oj7qSMaMfmOyd4j9hOFoxZe2baQszgHcSWjuya/CiT5kgZZKRudHNOA0pYXOl8rQ5nw==",
           "requires": {
-            "encodeurl": "1.0.2",
-            "escape-html": "1.0.3",
-            "parseurl": "1.3.2",
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "parseurl": "~1.3.2",
             "send": "0.16.2"
           }
         },
@@ -361,6 +387,11 @@
       "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
       "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
     },
+    "get-caller-file": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
+      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg=="
+    },
     "graceful-readlink": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/graceful-readlink/-/graceful-readlink-1.0.1.tgz",
@@ -371,10 +402,10 @@
       "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
       "integrity": "sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=",
       "requires": {
-        "depd": "1.1.2",
+        "depd": "~1.1.2",
         "inherits": "2.0.3",
         "setprototypeof": "1.1.0",
-        "statuses": "1.5.0"
+        "statuses": ">= 1.4.0 < 2"
       }
     },
     "iconv-lite": {
@@ -388,14 +419,9 @@
       "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
     },
     "ini": {
-      "version": "1.3.5",
-      "resolved": "https://registry.npmjs.org/ini/-/ini-1.3.5.tgz",
-      "integrity": "sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw=="
-    },
-    "invert-kv": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/invert-kv/-/invert-kv-1.0.0.tgz",
-      "integrity": "sha1-EEqOSqym09jNFXqO+L+rLXo//bY="
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ini/-/ini-2.0.0.tgz",
+      "integrity": "sha512-7PnF4oN3CvZF23ADhA5wRaYEQpJ8qygSkbtTXWBeXWXmEVRXK+1ITciHWwHhsjv1TmW0MgacIv6hEi5pX5NQdA=="
     },
     "is-buffer": {
       "version": "1.1.6",
@@ -403,12 +429,9 @@
       "integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w=="
     },
     "is-fullwidth-code-point": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
-      "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
-      "requires": {
-        "number-is-nan": "1.0.1"
-      }
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
+      "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg=="
     },
     "is-promise": {
       "version": "2.1.0",
@@ -421,15 +444,15 @@
       "integrity": "sha1-nIDlOMEtP7lcjZu5VZ+gzAQEBf0=",
       "requires": {
         "character-parser": "1.2.1",
-        "clean-css": "3.4.28",
-        "commander": "2.6.0",
-        "constantinople": "3.0.2",
+        "clean-css": "^3.1.9",
+        "commander": "~2.6.0",
+        "constantinople": "~3.0.1",
         "jstransformer": "0.0.2",
-        "mkdirp": "0.5.1",
+        "mkdirp": "~0.5.0",
         "transformers": "2.1.0",
-        "uglify-js": "2.8.29",
-        "void-elements": "2.0.1",
-        "with": "4.0.3"
+        "uglify-js": "^2.4.19",
+        "void-elements": "~2.0.1",
+        "with": "~4.0.0"
       }
     },
     "jstransformer": {
@@ -437,8 +460,8 @@
       "resolved": "https://registry.npmjs.org/jstransformer/-/jstransformer-0.0.2.tgz",
       "integrity": "sha1-eq4pqQPRls+glz2IXT5HlH7Ndqs=",
       "requires": {
-        "is-promise": "2.1.0",
-        "promise": "6.1.0"
+        "is-promise": "^2.0.0",
+        "promise": "^6.0.1"
       }
     },
     "kind-of": {
@@ -446,7 +469,7 @@
       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
       "requires": {
-        "is-buffer": "1.1.6"
+        "is-buffer": "^1.1.5"
       }
     },
     "lazy-cache": {
@@ -454,14 +477,6 @@
       "resolved": "https://registry.npmjs.org/lazy-cache/-/lazy-cache-1.0.4.tgz",
       "integrity": "sha1-odePw6UEdMuAhF07O24dpJpEbo4="
     },
-    "lcid": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/lcid/-/lcid-1.0.0.tgz",
-      "integrity": "sha1-MIrMr6C8SDo4Z7S28rlQYlHRuDU=",
-      "requires": {
-        "invert-kv": "1.0.0"
-      }
-    },
     "longest": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
@@ -492,7 +507,7 @@
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.18.tgz",
       "integrity": "sha512-lc/aahn+t4/SWV/qcmumYjymLsWfN3ELhpmVuUFjgsORruuZPVSwAQryq+HHGvO/SI2KVX26bx+En+zhM8g8hQ==",
       "requires": {
-        "mime-db": "1.33.0"
+        "mime-db": "~1.33.0"
       }
     },
     "minimist": {
@@ -514,48 +529,38 @@
       "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
     },
     "nconf": {
-      "version": "0.8.5",
-      "resolved": "https://registry.npmjs.org/nconf/-/nconf-0.8.5.tgz",
-      "integrity": "sha1-8pQeFWGVL6kGu7MjKM+I1MY155Q=",
-      "requires": {
-        "async": "1.5.2",
-        "ini": "1.3.5",
-        "secure-keys": "1.0.0",
-        "yargs": "3.32.0"
+      "version": "0.12.1",
+      "resolved": "https://registry.npmjs.org/nconf/-/nconf-0.12.1.tgz",
+      "integrity": "sha512-p2cfF+B3XXacQdswUYWZ0w6Vld0832A/tuqjLBu3H1sfUcby4N2oVbGhyuCkZv+t3iY3aiFEj7gZGqax9Q2c1w==",
+      "requires": {
+        "async": "^3.0.0",
+        "ini": "^2.0.0",
+        "secure-keys": "^1.0.0",
+        "yargs": "^16.1.1"
       },
       "dependencies": {
-        "camelcase": {
-          "version": "2.1.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-2.1.1.tgz",
-          "integrity": "sha1-fB0W1nmhu+WcoCys7PsBHiAfWh8="
-        },
         "cliui": {
-          "version": "3.2.0",
-          "resolved": "https://registry.npmjs.org/cliui/-/cliui-3.2.0.tgz",
-          "integrity": "sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=",
+          "version": "7.0.4",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-7.0.4.tgz",
+          "integrity": "sha512-OcRE68cOsVMXp1Yvonl/fzkQOyjLSu/8bhPDfQt0e0/Eb283TKP20Fs2MqoPsr9SwA595rRCA+QMzYc9nBP+JQ==",
           "requires": {
-            "string-width": "1.0.2",
-            "strip-ansi": "3.0.1",
-            "wrap-ansi": "2.1.0"
+            "string-width": "^4.2.0",
+            "strip-ansi": "^6.0.0",
+            "wrap-ansi": "^7.0.0"
           }
         },
-        "window-size": {
-          "version": "0.1.4",
-          "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.4.tgz",
-          "integrity": "sha1-+OGqHuWlPsW/FR/6CXQqatdpeHY="
-        },
         "yargs": {
-          "version": "3.32.0",
-          "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.32.0.tgz",
-          "integrity": "sha1-AwiOnr+edWtpdRYR0qXvWRSCyZU=",
+          "version": "16.2.0",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
+          "integrity": "sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==",
           "requires": {
-            "camelcase": "2.1.1",
-            "cliui": "3.2.0",
-            "decamelize": "1.2.0",
-            "os-locale": "1.4.0",
-            "string-width": "1.0.2",
-            "window-size": "0.1.4",
-            "y18n": "3.2.1"
+            "cliui": "^7.0.2",
+            "escalade": "^3.1.1",
+            "get-caller-file": "^2.0.5",
+            "require-directory": "^2.1.1",
+            "string-width": "^4.2.0",
+            "y18n": "^5.0.5",
+            "yargs-parser": "^20.2.2"
           }
         }
       }
@@ -565,11 +570,6 @@
       "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.1.tgz",
       "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk="
     },
-    "number-is-nan": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/number-is-nan/-/number-is-nan-1.0.1.tgz",
-      "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0="
-    },
     "on-finished": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
@@ -583,15 +583,7 @@
       "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.3.7.tgz",
       "integrity": "sha1-yQlBrVnkJzMokjB00s8ufLxuwNk=",
       "requires": {
-        "wordwrap": "0.0.3"
-      }
-    },
-    "os-locale": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
-      "integrity": "sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=",
-      "requires": {
-        "lcid": "1.0.0"
+        "wordwrap": "~0.0.2"
       }
     },
     "parseurl": {
@@ -609,7 +601,7 @@
       "resolved": "https://registry.npmjs.org/promise/-/promise-6.1.0.tgz",
       "integrity": "sha1-LOcp9rlLRcJoka0GAsXJDgTG7vY=",
       "requires": {
-        "asap": "1.0.0"
+        "asap": "~1.0.0"
       }
     },
     "qs": {
@@ -646,7 +638,7 @@
             "depd": "1.1.1",
             "inherits": "2.0.3",
             "setprototypeof": "1.0.3",
-            "statuses": "1.5.0"
+            "statuses": ">= 1.3.1 < 2"
           }
         },
         "setprototypeof": {
@@ -661,12 +653,17 @@
       "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
       "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc="
     },
+    "require-directory": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
+      "integrity": "sha512-fGxEI7+wsG9xrvdjsrlmL22OMTTiHRwAMroiEeMgq8gzoLC/PQr7RsRDSTLUg/bZAZtF+TVIkHc6/4RIKrui+Q=="
+    },
     "right-align": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/right-align/-/right-align-0.1.3.tgz",
       "integrity": "sha1-YTObci/mo1FWiSENJOFMlhSGE+8=",
       "requires": {
-        "align-text": "0.1.4"
+        "align-text": "^0.1.1"
       }
     },
     "safe-buffer": {
@@ -689,7 +686,7 @@
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
       "integrity": "sha1-66T12pwNyZneaAMti092FzZSA2s=",
       "requires": {
-        "amdefine": "1.0.1"
+        "amdefine": ">=0.0.4"
       }
     },
     "statuses": {
@@ -698,21 +695,21 @@
       "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
     },
     "string-width": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
-      "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
       "requires": {
-        "code-point-at": "1.1.0",
-        "is-fullwidth-code-point": "1.0.0",
-        "strip-ansi": "3.0.1"
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
       }
     },
     "strip-ansi": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
-      "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
       "requires": {
-        "ansi-regex": "2.1.1"
+        "ansi-regex": "^5.0.1"
       }
     },
     "transformers": {
@@ -720,9 +717,9 @@
       "resolved": "https://registry.npmjs.org/transformers/-/transformers-2.1.0.tgz",
       "integrity": "sha1-XSPLNVYd2F3Gf7hIIwm0fVPM6ac=",
       "requires": {
-        "css": "1.0.8",
-        "promise": "2.0.0",
-        "uglify-js": "2.2.5"
+        "css": "~1.0.8",
+        "promise": "~2.0",
+        "uglify-js": "~2.2.5"
       },
       "dependencies": {
         "is-promise": {
@@ -735,7 +732,7 @@
           "resolved": "https://registry.npmjs.org/promise/-/promise-2.0.0.tgz",
           "integrity": "sha1-RmSKqdYFr10ucMMCS/WUNtoCuA4=",
           "requires": {
-            "is-promise": "1.0.1"
+            "is-promise": "~1"
           }
         },
         "source-map": {
@@ -743,7 +740,7 @@
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
           "integrity": "sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=",
           "requires": {
-            "amdefine": "1.0.1"
+            "amdefine": ">=0.0.4"
           }
         },
         "uglify-js": {
@@ -751,8 +748,8 @@
           "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.2.5.tgz",
           "integrity": "sha1-puAqcNg5eSuXgEiLe4sYTAlcmcc=",
           "requires": {
-            "optimist": "0.3.7",
-            "source-map": "0.1.43"
+            "optimist": "~0.3.5",
+            "source-map": "~0.1.7"
           }
         }
       }
@@ -763,7 +760,7 @@
       "integrity": "sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==",
       "requires": {
         "media-typer": "0.3.0",
-        "mime-types": "2.1.18"
+        "mime-types": "~2.1.18"
       }
     },
     "uglify-js": {
@@ -771,9 +768,9 @@
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.8.29.tgz",
       "integrity": "sha1-KcVzMUgFe7Th913zW3qcty5qWd0=",
       "requires": {
-        "source-map": "0.5.7",
-        "uglify-to-browserify": "1.0.2",
-        "yargs": "3.10.0"
+        "source-map": "~0.5.1",
+        "uglify-to-browserify": "~1.0.0",
+        "yargs": "~3.10.0"
       },
       "dependencies": {
         "source-map": {
@@ -814,8 +811,8 @@
       "resolved": "https://registry.npmjs.org/with/-/with-4.0.3.tgz",
       "integrity": "sha1-7v0VTp550sjTQXtkeo8U2f7M4U4=",
       "requires": {
-        "acorn": "1.2.2",
-        "acorn-globals": "1.0.9"
+        "acorn": "^1.0.1",
+        "acorn-globals": "^1.0.3"
       },
       "dependencies": {
         "acorn": {
@@ -831,29 +828,35 @@
       "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
     },
     "wrap-ansi": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
-      "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
+      "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
       "requires": {
-        "string-width": "1.0.2",
-        "strip-ansi": "3.0.1"
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
       }
     },
     "y18n": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
-      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE="
+      "version": "5.0.8",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
+      "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA=="
     },
     "yargs": {
       "version": "3.10.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
       "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
       "requires": {
-        "camelcase": "1.2.1",
-        "cliui": "2.1.0",
-        "decamelize": "1.2.0",
+        "camelcase": "^1.0.2",
+        "cliui": "^2.1.0",
+        "decamelize": "^1.0.0",
         "window-size": "0.1.0"
       }
+    },
+    "yargs-parser": {
+      "version": "20.2.9",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.9.tgz",
+      "integrity": "sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w=="
     }
   }
 }
diff --git a/package.json b/package.json
index 0f2093b..f7c95f4 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,6 @@
   "dependencies": {
     "express": "~4.16.3",
     "jade": "~1.11.0",
-    "nconf": "^0.8.4"
+    "nconf": "^0.12.1"
   }
 }