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

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https://hg.mozilla.org/integration/gaia-1_4/rev/cbd120ffd808
Author: Steve Chung <schung@mozilla.com>
Desc: Bug 1016897 - [Message]Previous saved draft will show up while entering edit new message view r=julienw

Conflicts:

	apps/sms/test/unit/thread_ui_test.js
Bumping manifests a=b2g-bump