Bumping gaia.json for 8 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/8efd159d2fef
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #24625 from staktrace/nopref

Bug 1075750 - Remove reference to a dead pref. r=fabrice

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https://hg.mozilla.org/integration/gaia-central/rev/bc553275a350
Author: Kartikaya Gupta <kgupta@mozilla.com>
Desc: Bug 1075750 - Remove reference to a dead pref. r=fabrice

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https://hg.mozilla.org/integration/gaia-central/rev/74438dfafda3
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24712 from Cwiiis/bug1076958-app-grouping-tap-to-expand

Bug 1076958 - Tapping anywhere on a group should cause it to expand. r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/17e5aa63b006
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 1076958 - Tapping anywhere on a group should cause it to expand. r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/b14dd1c7ca2c
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Merge pull request #24613 from gueroJeff/1067479-add-br

Bug 1067479 - Add Breton (br) to languages_all.json. r=stas

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https://hg.mozilla.org/integration/gaia-central/rev/8ad9c2ce52cf
Author: Jeff Beatty <jbeatty@mozilla.com>
Desc: Bug 1067479 - Add Breton (br) to languages_all.json. r=stas

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https://hg.mozilla.org/integration/gaia-central/rev/624c400b1df0
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24718 from mikehenrty/bug-1077025-remove-travis-status

Bug 1077025 - Remove travis build status badge r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/839a61c7ff1d
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1077025 - Remove travis build status badge
Bumping manifests a=b2g-bump