Bumping gaia.json for 7 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_1/rev/87861ba7ee5b
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1077579 - [SoftwareHome] Add integration tests for permission dialog, coverage for bug 1074608 r=mhenretty

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https://hg.mozilla.org/integration/gaia-2_1/rev/9c045b6a0232
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1074608 - Fix permission prompts with SHB button

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https://hg.mozilla.org/integration/gaia-2_1/rev/a6081dfc02bd
Author: Sherman Chen <shamen.chens@gmail.com>
Desc: Bug 1070865 - Fix incorrect resize within popup window

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https://hg.mozilla.org/integration/gaia-2_1/rev/25565f57f47a
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #24860 from cctuan/1071775-v21

Bug 1071775  - avoid reset orientation when new app is attentionWindow or callscreenWindow

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https://hg.mozilla.org/integration/gaia-2_1/rev/c1dc85fc173f
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 1071775  - avoid reset orientation when new app is attentionWindow or callscreenWindow

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https://hg.mozilla.org/integration/gaia-2_1/rev/bb415e1f24a4
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #24919 from JerryShih/Bug-1074521-status-bar-v2.1

Bug 1074521 - align clip and transform animation

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https://hg.mozilla.org/integration/gaia-2_1/rev/aac3f800349e
Author: JerryShih <hshih@mozilla.com>
Desc: Bug 1074521 - align clip and transform animation
Bumping manifests a=b2g-bump