Bumping gaia.json for 2 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/07c230d8337a
Author: evanxd <itoyxd@gmail.com>
Desc: Merge pull request #13690 from evanxd/bug-925961-v1.2

Bug 925961 - [B2G][Email] Receiver's email address displays as "null" after saving, editing, and then saving the draft again

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https://hg.mozilla.org/integration/gaia-1_2/rev/a4a0fd6d4c79
Author: Evan Xd <itoyxd@gmail.com>
Desc: Bug 925961 - Use the email address parser for showing bubble properly.