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

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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
Bumping manifests a=b2g-bump