chore(release): 1.15.0 [skip ci]

# [1.15.0](v1.14.1...v1.15.0) (2019-02-13)

### Features

* **list based cmds:** enable moment date formatting for cmds that have listing functionality ([d9d652e](d9d652e)), closes [#625](#625)

package.json

@@ -1,7 +1,7 @@
 {
     "name": "gh",
     "description": "GitHub command line tools.",
-    "version": "1.14.1",
+    "version": "1.15.0",
     "homepage": "http://nodegh.io",
     "author": {
         "name": "Eduardo Lundgren",