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

========

https://hg.mozilla.org/integration/gaia-central/rev/32e1a251fe42
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1003876 - merge pull request #27933 from benfrancis:1003876-4 to mozilla-b2g:master

========

https://hg.mozilla.org/integration/gaia-central/rev/751042208bdc
Author: Ben Francis <ben@tola.me.uk>
Desc: Bug 1003876 - Install an app from a web page

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "115334fcbd3f65c9da8f12fce815a6309cea911d", 
+        "git_revision": "189d6b3c4e44cfd28a92ce7dee4e06739f479feb", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "9835fe348b00f939c80b2a6df5e364382ecd848c", 
+    "revision": "32e1a251fe4293ac46545d111bd88868be1595ee", 
     "repo_path": "integration/gaia-central"
 }