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

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https://hg.mozilla.org/integration/gaia-central/rev/3057b08e087d
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1040548 - merge pull request #29620 from RudyLu:keyboard/Bug1040548-remove_input_sequence to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/d773aa018cc7
Author: Rudy Lu <me@rudy.lu>
Desc: Bug 1040548 - Move state (input sequence) out of IME engines.

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "505056d3b1fb616f8735a31591481a0fa76cb7b3", 
+        "git_revision": "4d87112bbf48cdd09c19e553cc9aebd2a2c4ddfd", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "31232a23bf9561423951dcddac2d265108f72042", 
+    "revision": "3057b08e087df6d1ee21ca3a3741e56bb78021a1", 
     "repo_path": "integration/gaia-central"
 }