Bumping gaia.json for 3 gaia-central revision(s)

========

https://hg.mozilla.org/integration/gaia-central/rev/3f096cb9a6eb
Author: crh0716 <crh0716@gmail.com>
Desc: Revert "Bug 873917 - Use new request confirming message"

This reverts commit 1396db64e4cb54fce9c64d632898663ea4e425e2.

========

https://hg.mozilla.org/integration/gaia-central/rev/0c4f8028fdef
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #10374 from rwldrn/882899

Bug 882899 - [SMS][MMS] Utils.getContactCarrier throws TypeError if tel not found (found is undefined)

========

https://hg.mozilla.org/integration/gaia-central/rev/b9c885ffce98
Author: Rick Waldron <waldron.rick@gmail.com>
Desc: Bug 882899 - [SMS][MMS] Utils.getContactCarrier throws TypeError if tel not found (found is undefined)

https://bugzilla.mozilla.org/show_bug.cgi?id=882899
Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "59a7fe9d041ddb52f3e38659b0b08ac8a5fc0652", 
+    "revision": "3f096cb9a6ebc62d8b29770d1687b8191f31298d", 
     "repo_path": "/integration/gaia-central"
 }