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

========

https://hg.mozilla.org/integration/gaia-central/rev/ae3ce180308a
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #12796 from gdamjan/master

Bug 932607 - Adding Macedonian keyboard layout, r=timdream

========

https://hg.mozilla.org/integration/gaia-central/rev/bc8a6355f7bf
Author: Damjan Georgievski <gdamjan@gmail.com>
Desc: Bug 932607 - Adding Macedonian keyboard layout