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

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https://hg.mozilla.org/integration/gaia-central/rev/d63017b5326a
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Merge pull request #23806 from stasm/940772-dehardcode-plural

Bug 940772 - Dehardcode the plural macro. r=gandalf

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https://hg.mozilla.org/integration/gaia-central/rev/e483d7817872
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Bug 940772 - Dehardcode the plural macro. r=gandalf

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "ae0ea406996ec5ec4b35ef0d5f3fff5f0cbf211c", 
+    "revision": "d63017b5326afc6d464ecefee5cd13737f1dbd4d", 
     "repo_path": "/integration/gaia-central"
 }