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

========

https://hg.mozilla.org/integration/gaia-central/rev/508eaa6999cf
Author: James Burke <jrburke@gmail.com>
Desc: Merge pull request #22899 from jrburke/bug1050725-email-notranslate-overpaint

Bug 1050725 - Reduce overpaint of the email app. Patch from vingtetun, r=jrburke

========

https://hg.mozilla.org/integration/gaia-central/rev/2036f5bc7793
Author: jrburke <jrburke@gmail.com>
Desc: Bug 1050725 - Reduce overpaint of the email app

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "da1b66f8c12fbb8a680ed11ba95529f107d2d887", 
+    "revision": "508eaa6999cfb9bfcfacee1c4ca7ead97a773e7e", 
     "repo_path": "/integration/gaia-central"
 }