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

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https://hg.mozilla.org/integration/gaia-central/rev/b04932bb7473
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #15786 from KevinGrandon/bug_961557_to_master

Bug 961557 - Blur event causing rocketbar focus to be lost r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/567760060dfc
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 961557 - Blur event causing rocketbar focus to be lost r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/8f8c70313c74
Author: Ian Liu <iliu@mozilla.com>
Desc: Merge pull request #15708 from ian-liu/bluetooth/bug964138_remove_setTimeout_workaround_since_bluetooth_sendFile_is_more_stable

Bug 964138 - [Bluetooth File Transfer] Remove setTimeout workaround from sending file while device is just pairing, r=@alivedise

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https://hg.mozilla.org/integration/gaia-central/rev/7de3d359fed5
Author: ian-liu <iliu@mozilla.com>
Desc: Bug 964138 - [Bluetooth File Transfer] Remove setTimeout workaround from sending file while device is just pairing

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https://hg.mozilla.org/integration/gaia-central/rev/fce59816a9e0
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #15763 from crh0716/958547

Bug 958547 - Hide the signal bars if the sim card is locked r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/9d8c2ce5cff5
Author: Arthur Chen <crh0716@gmail.com>
Desc: Bug 958547 - Hide the signal bars if the sim card is locked

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https://hg.mozilla.org/integration/gaia-central/rev/c886f1c695dd
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #15697 from gasolin/issue-938518

Bug 935820 - [Flatfish] make Context menu not fill fullscreen, r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/b53d9173e3e6
Author: gasolin <gasolin@gmail.com>
Desc: Bug 935820 - [Flatfish] make Context menu not fill fullscreen
Bumping manifests a=b2g-bump