Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/3ed7544ee8f4
Author: vingtetun <21@vingtetun.org>
Desc: Merge pull request #11230 from KevinGrandon/content2-initial

Bug 898352 - Implement homescreen rocket bar and opensearch.

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https://hg.mozilla.org/integration/gaia-central/rev/922968c62be8
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 898352 - Implement homescreen rocket bar and opensearch r=vingtetun

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "79c130ec5ca10b61a4324ef36ef8fedab6fc2634", 
+    "revision": "3ed7544ee8f48cec10bff2515c9393a4dbf21ae2", 
     "repo_path": "/integration/gaia-central"
 }