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

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https://hg.mozilla.org/integration/gaia-central/rev/afa69c934fa1
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #21456 from cctuan/1035010

Bug 1035010 - [edge gestures] Unlocalized App name appear while switching App (without changing locale after reboot)

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https://hg.mozilla.org/integration/gaia-central/rev/f0f549a632a1
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 1035010 - [edge gestures] Unlocalized App name appear while switching App (without changing locale after reboot)

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https://hg.mozilla.org/integration/gaia-central/rev/ca48edf0ffa7
Author: Jared Hirsch <ohai@6a68.net>
Desc: Merge pull request #21506 from 6a68/bug-1034331-fxa-coppa-progress-bar

Bug 1034331 - Decrement fxa step count when going back from COPPA screen...

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https://hg.mozilla.org/integration/gaia-central/rev/2e39a7c3a854
Author: Jared Hirsch <ohai@6a68.net>
Desc: Bug 1034331 - Decrement fxa step count when going back from COPPA screen to enter email screen. r=ferjm

    Also: only increment the fxa step count if moving forward in the flow.
Bumping manifests a=b2g-bump