Bumping gaia.json for 9 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_1/rev/e526df1147ad
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #25491 from mancas/bug1081243_v2.1

Bug 1081243 - [Downloads] A recently download file can not be open. Patc...

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https://hg.mozilla.org/integration/gaia-2_1/rev/d044b7268b51
Author: Manuel Casas Barrado <manuel.casasbarrado@telefonica.com>
Desc: Bug 1081243 - [Downloads] A recently download file can not be open. Patch v2.1

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https://hg.mozilla.org/integration/gaia-2_1/rev/d09aabeaa75e
Author: German Toro del Valle <gtorodelvalle@gmail.com>
Desc: Bug 1082139 - JavascriptException: JavascriptException: TypeError: window.getComputedStyle(...) is null at: app://callscreen.gaiamobile.org/gaia_build_defer_index.js line: 146

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https://hg.mozilla.org/integration/gaia-2_1/rev/508f81fcaefc
Author: albertopq <apastor@mozilla.com>
Desc: Bug 1087027 - Closing Sim dialog on home press

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https://hg.mozilla.org/integration/gaia-2_1/rev/565f3e3d6f6b
Author: ian-liu <iliu@mozilla.com>
Desc: Bug 1085201 - [Flame][Tako][v2.1][Settings] "Searching device" not hidden as Sony SBH50 BTHS paired via NFC

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https://hg.mozilla.org/integration/gaia-2_1/rev/3129d5467a92
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1086715 - make sure update dialogs still work without SHB

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https://hg.mozilla.org/integration/gaia-2_1/rev/ed8330849380
Author: Marcus Cavanaugh <m@mcav.com>
Desc: Bug 1078672 - [Clock] Alarm sound becomes "No Sound" after OTA upgrade from 2.0 to 2.1.

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https://hg.mozilla.org/integration/gaia-2_1/rev/0c56afea2036
Author: John Lu [:mnjul] <jlu@mozilla.com>
Desc: Bug 1085496 - Fix Lockscreen "SIM X Carrier" text overlapping by using margin instead of fixed width

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https://hg.mozilla.org/integration/gaia-2_1/rev/de23a1d4bc06
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 1085380 - First activity is not killed after the second one started
Bumping manifests a=b2g-bump