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

========

https://hg.mozilla.org/integration/gaia-central/rev/f87f35a9938f
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #16102 from Darep/969768-fix-reload-application

Bug 969768: Fix "Reload application" button on the Gaia browser-helper extension

========

https://hg.mozilla.org/integration/gaia-central/rev/29e59e74e9e7
Author: Antti-Jussi Kovalainen <ajk@ajk.fi>
Desc: Bug 969768: Fix "Reload application" button on the Gaia browser-helper

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "3868363f8d5e29febc205778f876427837c69e4a", 
+    "revision": "f87f35a9938fe9e8237d59321b9359947e7fc968", 
     "repo_path": "/integration/gaia-central"
 }