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

========

https://hg.mozilla.org/integration/gaia-central/rev/415520315b04
Author: Hubert Figuière <hub@figuiere.net>
Desc: Merge pull request #25941 from hfiguiere/bug1093219-m3u

Bug 1093219 - m3u parsing. r=djf

========

https://hg.mozilla.org/integration/gaia-central/rev/491d7b51b14c
Author: Hubert Figuière <hub@figuiere.net>
Desc: Bug 1093219 - m3u parsing. r=djf

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "0f6e92a467af5218ff684de069a83c4f44a2546e", 
+    "revision": "415520315b048f40979e9bac344bec99e18df901", 
     "repo_path": "integration/gaia-central"
 }