Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/f04cae1e859d
Author: Marshall Culpepper <marshall.law@gmail.com>
Desc: Merge pull request #17961 from marshall/ftuPing

Bug 969101: Initial implementation of a first-time use ping. r=fabrice

========

https://hg.mozilla.org/integration/gaia-central/rev/db140ca3dc95
Author: Marshall Culpepper <marshall@mozilla.com>
Desc: Bug 969101: Initial implementation of a first-time use ping. r=fabrice

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "2cc9c184ea644faf8a2b06be8e65feaf1979b645", 
+    "revision": "f04cae1e859d9c78b8b9601643b803eb3f977a35", 
     "repo_path": "/integration/gaia-central"
 }