Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/905facce2fc8
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1150025 - merge pull request #29568 from albertopq:1150025-dismiss-pin-rocketbar to mozilla-b2g:master

========

https://hg.mozilla.org/integration/gaia-central/rev/e836117d5005
Author: albertopq <albert.pastor@gmail.com>
Desc: Bug 1150025 - Dismissing SIM dialog when opening the rocketbar

========

https://hg.mozilla.org/integration/gaia-central/rev/8faa35e5f848
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1154429 - merge pull request #29569 from etiennesegonzac:bug-1154429 to mozilla-b2g:master

========

https://hg.mozilla.org/integration/gaia-central/rev/dda6b0171a1c
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Bug 1154429 - (1112524 follow up) let the TouchForwarder forward to aria-hidden="false" frames. r=alive

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "8d2ce4f0b07081119d19e909e7b5317d983b8ae3", 
+        "git_revision": "107ad201dbc7aaf85176e0d339c346bdaee48669", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "83b5fb78bf41c56b7a6c22a662647f89877d0226", 
+    "revision": "905facce2fc802b956428af1b948078d62af209a", 
     "repo_path": "integration/gaia-central"
 }