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

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https://hg.mozilla.org/integration/gaia-central/rev/c5331f480f84
Author: Tzu-Lin Huang <dwi019@gmail.com>
Desc: Merge pull request #28060 from dwi2/bug1130955

Bug 1130955 - Notification Sender should not be always landscape

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https://hg.mozilla.org/integration/gaia-central/rev/295829a71f4f
Author: Tzu-Lin Huang <tzhuang@mozilla.com>
Desc: Bug 1130955 - Notification Sender should not be always landscape

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https://hg.mozilla.org/integration/gaia-central/rev/38ff6a33d7c3
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1129255 - merge pull request #28050 from gasolin:issue-1129255 to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/6b2220d41829
Author: gasolin <gasolin@gmail.com>
Desc: Bug 1129255 - load script with wrong name

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "ca3806d22b606152af1ccc8491d6eefed89517fe", 
+        "git_revision": "bc052c237e0371e8c1d7286149cd854326ab1a52", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "4e60eac3ec91f53b60f61fb95b7e1b0846a30152", 
+    "revision": "c5331f480f8479f381839f1e327e341173bcf197", 
     "repo_path": "integration/gaia-central"
 }