Bumping gaia.json for 4 gaia-1_2 revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-1_2/rev/dee505091f71
Author: Zac <zcampbell@mozilla.com>
Desc: Merge pull request #13062 from viorelaioia/bug-928414

Bug 928414 - [v1.2] Write a test to use the 'Number' keyboard on aurora

========

https://hg.mozilla.org/integration/gaia-1_2/rev/693bd218eb57
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 928414 - [v1.2] Write a test to use the 'Number' keyboard on aurora

========

https://hg.mozilla.org/integration/gaia-1_2/rev/bf130563a4c4
Author: Zac <zcampbell@mozilla.com>
Desc: Merge pull request #13086 from viorelaioia/bug-928408_1

Bug 928408 - Test notification when the screen is locked on aurora

========

https://hg.mozilla.org/integration/gaia-1_2/rev/500b57b5a32b
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 928408 - Test notification when the screen is locked on aurora