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

========

https://hg.mozilla.org/integration/gaia-central/rev/ce1a66a53fed
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #20798 from KevinGrandon/Cwiiis-bug991460-squashed

Bug 991460 - Allow adding apps to collections in verticalhome.

========

https://hg.mozilla.org/integration/gaia-central/rev/219fa13bcceb
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 991460 - Allow adding apps to collections in verticalhome. r=kgrandon

- Make consts in grid_dragdrop upper case.
- Add a 'hovered' class to icons being hovered over in GaiaGrid
- Add a 'collection' class to collections in a GaiaGrid
- Add a larger rearrange delay when hovering over a collection
- Add a pulsing animation to collections when they're hovered over
- Add hook to drop icons into collections
- Add IAC to add apps to collections

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "aebbefb8569ccb025fc3ebda5ecfa8f0d5e695f7", 
+    "revision": "ce1a66a53fed1830b1bf757eb33d2a2fdf9e5ded", 
     "repo_path": "/integration/gaia-central"
 }