Release changelog for 2.15 (#737)

Signed-off-by: Sergio Schvezov <sergio.schvezov@ubuntu.com>

debian/changelog

@@ -1,3 +1,50 @@
+snapcraft (2.15) xenial; urgency=medium
+
+  [ Harald Sitter ]
+  * add multiple generator script options to autotools (#679)
+
+  [ Sam Yaple ]
+  * python2 plugin: Add support for constraints (#657)
+
+  [ Blake Rouse ]
+  * Add option disable-parallel for all plugins. (#698)
+  * python3 plugin: allow setup.py to work on some projects. (#718)
+
+  [ Christian Ehrhardt ]
+  * fix checker errors to let runtests.sh pass again (#717)
+
+  [ Dan Watkins ]
+  * python plugins: add process-dependency-links option (#734)
+
+  [ Leo Arias ]
+  * Start the fake parts server only in the tests that need it. (#720)
+    (LP: #1611828)
+  * In travis, install the static checkers with pip. (#724)
+  * go plugin: add a go-buildtags property to the plugin (#733)
+
+  [ Joe Talbott ]
+  * Set owner/group for directories in stage and prime (#723)
+  * parser - Return non-zero code for wiki errors. (#658)
+  * Factor parts config into snapcraft/internal/parts.py (#731)
+
+  [ Kyle Fazzari ]
+  * Use link_or_copy instead of just hard-links for deb cache. (#728)
+  * Support having the snapcraft.yaml in a subdir. (#725)
+  * Dump plugin: Don't remove install directory. (#729)
+
+  [ Jason Hobbs ]
+  * Add artifacts option to make plugin. (#715)
+
+  [ Michael McCracken ]
+  * Clarification of make plugin help text (#730)
+
+  [ Sergio Schvezov ]
+  * Globally cache stage-packages (#677)
+  * Remove store dispute logic (#732)
+  * New upstream release 2.15 (LP: #1614322)
+
+ -- Sergio Schvezov <sergio.schvezov@ubuntu.com>  Wed, 17 Aug 2016 17:47:44 -0300
+
 snapcraft (2.14) xenial; urgency=medium
 
   [ Joe Talbott ]