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

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https://hg.mozilla.org/integration/gaia-central/rev/ff6f50a3f291
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Merge pull request #19837 from millermedeiros/1016687-toggle-calendar

Bug 1016687 - [B2G][Calendar] - Event icons / indicators (dots below the date) are still visible in month view after disabling offline calendar r=gaye

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https://hg.mozilla.org/integration/gaia-central/rev/88c69a968dfd
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Bug 1016687 - [B2G][Calendar] - Event icons / indicators (dots below the date) are still visible in month view after disabling offline calendar

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "22b7f213fa1ca0d6250c4b66b4f6d2dee6f4bd3f", 
+    "revision": "ff6f50a3f291d4d0c81d159d06ced5d41e341214", 
     "repo_path": "/integration/gaia-central"
 }