Bump paperclip from 4.2.4 to 4.3.7

Bumps [paperclip](https://github.com/thoughtbot/paperclip) from 4.2.4 to 4.3.7.
- [Release notes](https://github.com/thoughtbot/paperclip/releases)
- [Changelog](https://github.com/thoughtbot/paperclip/blob/v4.3.7/NEWS)
- [Commits](thoughtbot/paperclip@v4.2.4...v4.3.7)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Gemfile

@@ -19,7 +19,7 @@ group :dependencies do
   gem "open_id_authentication"
   gem "RubyInline"
   gem "coveralls", require: false
-  gem "paperclip", "~>4.2.2"
+  gem "paperclip", "~>4.3.7"
 
   # if you use amazon s3 for warpable image storage
   gem 'aws-sdk', '~> 1.5.7'

Gemfile.lock

@@ -43,7 +43,16 @@ GEM
     climate_control (0.2.0)
     cocaine (0.5.8)
       climate_control (>= 0.0.3, < 1.0)
-    concurrent-ruby (1.1.4)
+    concurrent-ruby (1.1.5)
+    coveralls (0.7.1)
+      multi_json (~> 1.3)
+      rest-client
+      simplecov (>= 0.7)
+      term-ansicolor
+      thor
+    docile (1.3.1)
+    domain_name (0.5.20180417)
+      unf (>= 0.0.5, < 1.0.0)
     erubis (2.7.0)
     execjs (2.7.0)
     ffi (1.10.0)
@@ -53,6 +62,8 @@ GEM
     geokit-rails (1.1.4)
       geokit (>= 1.5.0)
     hike (1.2.3)
+    http-cookie (1.0.3)
+      domain_name (~> 0.5)
     httparty (0.16.2)
       multi_xml (>= 0.5.2)
     i18n (0.9.5)
@@ -70,10 +81,12 @@ GEM
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.25.1)
+    mimemagic (0.3.0)
     mini_portile2 (2.4.0)
     multi_json (1.13.1)
     multi_xml (0.6.0)
     mysql2 (0.3.21)
+    netrc (0.11.0)
     nokogiri (1.10.1)
       mini_portile2 (~> 2.4.0)
     oa-core (0.3.2)
@@ -83,11 +96,12 @@ GEM
       ruby-openid-apps-discovery (~> 1.2.0)
     open_id_authentication (1.3.0)
       rack-openid (~> 1.3)
-    paperclip (4.2.4)
+    paperclip (4.3.7)
       activemodel (>= 3.2.0)
       activesupport (>= 3.2.0)
       cocaine (~> 0.5.5)
       mime-types
+      mimemagic (= 0.3.0)
     passenger (6.0.2)
       rack
       rake (>= 0.8.1)
@@ -128,6 +142,10 @@ GEM
     recaptcha (4.13.1)
       json
     ref (2.0.0)
+    rest-client (2.0.2)
+      http-cookie (>= 1.0.2, < 2.0)
+      mime-types (>= 1.16, < 4.0)
+      netrc (~> 0.8)
     right_aws (3.1.0)
       right_http_connection (>= 1.2.5)
     right_http_connection (1.5.0)
@@ -139,25 +157,36 @@ GEM
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
+    simplecov (0.16.1)
+      docile (~> 1.1)
+      json (>= 1.8, < 3)
+      simplecov-html (~> 0.10.0)
+    simplecov-html (0.10.2)
     sprockets (2.2.3)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
     sqlite3 (1.4.0)
+    term-ansicolor (1.7.1)
+      tins (~> 1.0)
     test-unit (3.3.0)
       power_assert
     therubyracer (0.12.3)
       libv8 (~> 3.16.14.15)
       ref
     thor (0.20.3)
     tilt (1.4.1)
+    tins (1.20.2)
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.55)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)
+    unf (0.1.4)
+      unf_ext
+    unf_ext (0.0.7.5)
     uuidtools (2.1.5)
     will_paginate (3.1.7)
     will_paginate-bootstrap (1.0.2)
@@ -170,14 +199,15 @@ DEPENDENCIES
   RubyInline
   autoprefixer-rails
   aws-sdk (~> 1.5.7)
+  coveralls
   friendly_id
   geokit-rails (= 1.1.4)
   image_science (= 1.2.6)
   jshintrb
   mysql2 (< 0.4)
   oa-openid (= 0.3.2)
   open_id_authentication
-  paperclip (~> 4.2.2)
+  paperclip (~> 4.3.7)
   passenger
   rails (~> 3.2)
   rake (~> 12.3.2)