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

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https://hg.mozilla.org/integration/gaia-central/rev/c39deb36272f
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #17538 from KevinGrandon/bug_987282_jshint_options

Bug 987282 - JSHint allow getter without setter globally r=julienw

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https://hg.mozilla.org/integration/gaia-central/rev/c5385eb6122b
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 987282 - JSHint allow getter without setter globally r=julienw

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "8b5f1810a97960eb748d7c1551b6b9ed56e4bef2", 
+    "revision": "c39deb36272fcd919148f9114c6b46333c292062", 
     "repo_path": "/integration/gaia-central"
 }