Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-1_3/rev/0c8926c92fad
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Bug 969230 - Fix lines inadvertently added when resolving a merge conflict during cherry-picking.

========

https://hg.mozilla.org/integration/gaia-1_3/rev/15f6aef5e225
Author: Fernando Campo <fernando.campo@o2.com>
Desc: Merge pull request #16626 from fcampo/fix-ftu-email-scroll

Bug 969230 - [FTE] Email address field is covered by keyboard in about B2G OS page (r=arcturus)
Conflicts:
	apps/communications/ftu/test/unit/sim_manager_test.js
	apps/communications/ftu/test/unit/tutorial_test.js

========

https://hg.mozilla.org/integration/gaia-1_3/rev/5c14841371d6
Author: Andrew Sutherland <asutherland@asutherland.org>
Desc: Merge pull request #16585 from asutherland/email-asflagfix

Bug 972514 - [B2G][Email] ActiveSync message state changes from server not synchronized error "Failed to parse a message: Error: Bad body type: undefined" thrown. r=mcav
Bumping manifests a=b2g-bump