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

========

https://hg.mozilla.org/integration/gaia-central/rev/461d907cc442
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #18349 from KevinGrandon/bug_995406_home2_install_uninstall_apps

Bug 995406 - [Home2] Support installing/uninstalling of applications

========

https://hg.mozilla.org/integration/gaia-central/rev/6e87b9419f29
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 995406 - [Home2] Support installing/uninstalling of applications r=me a=gwagner

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "e78fa2c8e1f37690bb39aa6d4768947e25cbaf74", 
+    "revision": "461d907cc44252e38fd2ac1137e9c73046fa9d59", 
     "repo_path": "/integration/gaia-central"
 }