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

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https://hg.mozilla.org/integration/gaia-central/rev/22bcbfd9b22b
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #17875 from evanxd/bug-990448

Bug 990448 - [Calendar] JSHint fixes for remaining files

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https://hg.mozilla.org/integration/gaia-central/rev/667c28607872
Author: Evan Xd <itoyxd@gmail.com>
Desc: Bug 990448 - JSHint fixes for the controllers and models folders.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "148a78c852008407c8ce071a1ccd8653562be602", 
+    "revision": "22bcbfd9b22bb0f432376c771d189954756b334e", 
     "repo_path": "/integration/gaia-central"
 }