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

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https://hg.mozilla.org/integration/gaia-central/rev/0939efa6437c
Author: Marcus Cavanaugh <m@mcav.com>
Desc: Merge pull request #15297 from mcav/clock-label-enter

Bug 946106 - [fugu][buri]pressing enter on the keyboard does not save alarm. r=mcav

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https://hg.mozilla.org/integration/gaia-central/rev/a10e15222fa8
Author: James Zhang <james.zhang@spreadtrum.com>
Desc: Bug 946106 - [fugu][buri]pressing enter on the keyboard does not save alarm. r=mcav

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "d41a05505c5fc8aaadddc31d3b1820bf30c231fc", 
+    "revision": "0939efa6437c9df452730a62148dc6827d49115d", 
     "repo_path": "/integration/gaia-central"
 }