Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/12dab22031b2
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1152969 - merge pull request #29743 from Cwiiis:bug1152969-can-save-empty-bookmark-name to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/9f2fb74821f8
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 1152969 - Fix being able to save empty bookmark names. r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/0e5903a60efa
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1142526 - merge pull request #29742 from stasm:1142526-innerHTML-value-relanding to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/ece1cfd1ce27
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/a5163837d153
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1157610 - merge pull request #29726 from sfoster:entrysheet-headers-bug-1157610 to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/328bd171e1a7
Author: Sam Foster <sfoster@mozilla.com>
Desc: Bug 1157610 - Bidi entry sheet titles

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "e8f4231141210db01f43405e0c0336f480083ae7", 
+        "git_revision": "5fd082cb265885248974fbb4ff70239901a6427e", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "3b9160c9f39b5e13ada99d0297b0fdf3971f581b", 
+    "revision": "12dab22031b25bdf7f4d70a53f5449dd7ac835b4", 
     "repo_path": "integration/gaia-central"
 }