Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/a71c15ee6e62
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #20706 from KevinGrandon/bug_1016226_collection_update

Bug 1016226 - [Vertical] Homescreen Icon should update when Collection's data changes

========

https://hg.mozilla.org/integration/gaia-central/rev/e6f14387acfe
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1016226 - [Vertical] Homescreen Icon should update when Collection's data changes r=ranbena

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "70117d0593f94bc7001851447d47991ca0c612e9", 
+    "revision": "a71c15ee6e62ebc00343265f10b0dee86dfc495d", 
     "repo_path": "/integration/gaia-central"
 }