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

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https://hg.mozilla.org/integration/gaia-central/rev/d833d1bddffb
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1142526 - merge pull request #28843 from stasm:1142526-innerHTML-value to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/5f89919cf2f6
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Bug 1142526 - Treat the innerHTML attribute as the string's value. r=gandalf

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https://hg.mozilla.org/integration/gaia-central/rev/2d2ec2b37833
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1143214 - merge pull request #29157 from sfoster:task-manager-subtitle-tweak-bug-1143214 to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/891f170b7460
Author: Sam Foster <sfoster@mozilla.com>
Desc: Bug 1143214 - Fix ssl icon size and subtitle style. r=etienne

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "bb08142b4f8fbc64ca81fe208caef9aed9f060f0", 
+        "git_revision": "685c5c174ff9e4a9358c05050cecd276defe4b52", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "fe3e8fe809e1f657e9d5659a2c353e8b00f124bf", 
+    "revision": "d833d1bddffb0bf36dcf19da1a59ac7c7667183b", 
     "repo_path": "integration/gaia-central"
 }