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

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https://hg.mozilla.org/integration/gaia-central/rev/5e6eca13f1e8
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #13486 from KevinGrandon/settings_desktop_shims

Bug 936185 - [Settings] Move shims into desktop helper r=evelyn

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https://hg.mozilla.org/integration/gaia-central/rev/5a3f6ecdc86a
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 936185 - [Settings] Move shims into desktop helper.

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "23f80d7380ba09328f52d52e41e384aeabe094aa", 
+    "revision": "5e6eca13f1e8d615b1b41d289afa7c61d10fdc6f", 
     "repo_path": "/integration/gaia-central"
 }