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

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https://hg.mozilla.org/integration/gaia-central/rev/4d6205188d52
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Merge pull request #22323 from justindarc/bug1045914

Bug 1045914 - JavaScript Warning

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https://hg.mozilla.org/integration/gaia-central/rev/c9c5325a9330
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Bug 1045914 - JavaScript Warning

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "1c14339048e3023e4de0c3560e7318480d0b6f98", 
+    "revision": "4d6205188d524e2a077425590a4732c91535452d", 
     "repo_path": "/integration/gaia-central"
 }