Bumping gaia.json for 8 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/007f168bd8ec
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #10969 from crh0716/893693

Bug 893693 - Add removeEventListener funtion to IccHelper r=echen

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https://hg.mozilla.org/integration/gaia-central/rev/b51cca845416
Author: crh0716 <crh0716@gmail.com>
Desc: Bug 893693 - Add removeEventListener funtion to IccHelper

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https://hg.mozilla.org/integration/gaia-central/rev/86dd4fe57bbc
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Merge pull request #10920 from comoyo/fix_settings_b2gdesk

Bug 796623 - Settings throw error in B2G desktop. r=arthurcc

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https://hg.mozilla.org/integration/gaia-central/rev/e6434ee1a344
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Bug 796623 - Settings throw error in B2G desktop

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https://hg.mozilla.org/integration/gaia-central/rev/ea4a47341f08
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #10816 from cctuan/889757

Bug 889757 - [Dialer] When holding a call and selecting keypad, cannot hide keypad and input number

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https://hg.mozilla.org/integration/gaia-central/rev/a2cbb3a6ed3d
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 889757 - [Dialer] When holding a call and selecting keypad, cannot hide keypad and input number

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https://hg.mozilla.org/integration/gaia-central/rev/8306f751be94
Author: Francisco Borja Salguero Castellano <fbsc@tid.es>
Desc: Merge pull request #10771 from rwldrn/888150

Bug 888150 - [MMS][Regression] Header actions are not working properly.

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https://hg.mozilla.org/integration/gaia-central/rev/ad7b307bc892
Author: Rick Waldron <waldron.rick@gmail.com>
Desc: Bug 888150 - [MMS][Regression] Header actions are not working properly.

- STR1 Fixed
- STR2 Cannot Reproduce (https://www.dropbox.com/sh/3lr5a5kepnns8z1/rydxqmpucg)
- STR3 Fixed
- Fixes broken activity handling introduced here: https://github.com/mozilla-b2g/gaia/commit/8b41ee9a80c1d6b3613339e7388035d3fbcc575d#L2R227 includes tests.

https://bugzilla.mozilla.org/show_bug.cgi?id=888150
Signed-off-by: Rick Waldron <waldron.rick@gmail.com>