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

========

https://hg.mozilla.org/integration/gaia-central/rev/63ec36329e28
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #16808 from gasolin/issue-942724

Bug 942724 - Support multiple notifications for recording device status, r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/4c66c84da430
Author: gasolin <gasolin@gmail.com>
Desc: Bug 942724 - Support multiple notifications for recording device status

- refactor: using createItem function to return data dict
- abstract renderPanels
- fix and support recording status
- add test cases
- refactor use updateRecordingStatus
- update statusbar status via custom event

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "branch": "", 
         "revision": ""
     }, 
-    "revision": "73de68772ff4ebdbe61ba6b6b14622278cd9daf7", 
+    "revision": "63ec36329e2805aa7c3edb5edad379ca57622bf2", 
     "repo_path": "/integration/gaia-central"
 }