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

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https://hg.mozilla.org/integration/gaia-central/rev/0247f0be1f59
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #20485 from RudyLu/keyboard/Bug1013739-persistent_alternativeMenu_master

Bug 1013739 - [Dolphin][Flame][FFOS 1.4]Long touch the build-in keyboard
r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/e29141d2fc19
Author: Rudy Lu <me@rudy.lu>
Desc: Bug 1013739 - [Dolphin][Flame][FFOS 1.4]Long touch the build-in keyboard
and income a call or alarm,the key touching is invalid.
 - Reset the state when the keyboard is hidden.
Bumping manifests a=b2g-bump