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

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https://hg.mozilla.org/integration/gaia-central/rev/9df318d546ab
Author: viorelaioia <viorela.ioia@softvision.ro>
Desc: Merge pull request #27085 from mwargers/regression_mail

Bug 1116566 - Create test to catch regression in bug 1116087

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https://hg.mozilla.org/integration/gaia-central/rev/2a6d1281157b
Author: Martijn Wargers <mwargers@mozilla.com>
Desc: Bug 1116566 - Create test to catch regression in bug 1116087

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https://hg.mozilla.org/integration/gaia-central/rev/ae4619632112
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #27958 from timdream/node-version

Bug 1129822 - Print node/npm versions, r=ricky

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https://hg.mozilla.org/integration/gaia-central/rev/507eb16ddcda
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Bug 1129822 - Print node/npm versions

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "e9b2d507f16867eb500334773f4e6a1b7f8dd686", 
+        "git_revision": "1e8725a92d35c06893a52d42eda34d1758ef3bb8", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "57cd034c55e1ddf2d36686267308f6be2ece1962", 
+    "revision": "9df318d546abe3c35e913cd62e951c0080cbc38f", 
     "repo_path": "integration/gaia-central"
 }