Bumping gaia.json for 5 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/20da670c9645
Author: Fabien Cazenave <fabien@cazenave.cc>
Desc: Merge pull request #11055 from fabi1cazenave/smsCursorScroll-bug875338

Bug 875338: the content is not scrolled down when sending an MMS, r=gnarf

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https://hg.mozilla.org/integration/gaia-central/rev/8dd470c59d5d
Author: Fabien Cazenave <fabien@cazenave.cc>
Desc: Bug 875338: unit tests

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https://hg.mozilla.org/integration/gaia-central/rev/91bcb68bfa1b
Author: Fabien Cazenave <fabien@cazenave.cc>
Desc: Bug 875338: the content is not scrolled down when sending an MMS, r=gnarf
+ do not scroll to bottom if the user already scrolled manually

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https://hg.mozilla.org/integration/gaia-central/rev/347ba8341259
Author: ochameau <poirot.alex@gmail.com>
Desc: Merge pull request #11409 from ochameau/bug902625

Bug 902625 - DEVICE_DEBUG doesn't correctly set remote debugging mode r=@vingtetun

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https://hg.mozilla.org/integration/gaia-central/rev/5415ffb74ea9
Author: Alexandre Poirot <poirot.alex@gmail.com>
Desc: Bug 902625 - DEVICE_DEBUG doesn't correctly set remote debugging mode