Bumping gaia.json for 2 gaia-1_2 revision(s) a=gaia-bump
Truncated some number of revisions since the previous bump.

========

https://hg.mozilla.org/integration/gaia-1_2/rev/816a3b9fd52c
Author: Alive.Kuo <alegnadise@gmail.com>
Desc: Merge pull request #13114 from alivedise/bugzilla/908601_v1.2/default-orientation

Bug 908601 - Support default orientation in system app, r=timdream

========

https://hg.mozilla.org/integration/gaia-1_2/rev/704f5d3321f4
Author: Alive Kuo <alegnadise@gmail.com>
Desc: Bug 908601 - Support default orientation in system app

Conflicts:
	apps/system/js/window.js
	apps/system/js/window_manager.js