Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/a9bdea3f43bb
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #26896 from nullaus/bug1098598

bug 1098598 - Use default crashedAppName in crash reporter. r=kgrandon

========

https://hg.mozilla.org/integration/gaia-central/rev/8e8232696e91
Author: Ghislain 'Aus' Lacroix <aus@mozilla.com>
Desc: bug 1098598 - Use default crashedAppName in crash reporter. r=kgrandon

========

https://hg.mozilla.org/integration/gaia-central/rev/e6eb7da48fd0
Author: James Burke <jrburke@gmail.com>
Desc: Merge pull request #27105 from takenspc/bug1117473

Bug 1117473 - [E-Mail] Typos in manifest.webapp r=jrburke

========

https://hg.mozilla.org/integration/gaia-central/rev/d5cd2d9cf63e
Author: Takeshi Kurosawa <taken.spc@gmail.com>
Desc: Bug 1117473 - [E-Mail] Typos in manifest.webapp

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "63fb53cc54c1a6d67dc2d9516a6443b75701431c", 
+    "revision": "a9bdea3f43bba6b5c3dc441a263e66c5a64f2081", 
     "repo_path": "integration/gaia-central"
 }