Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/dd546c8e047c
Author: Fernando Campo <fernando.campo@o2.com>
Desc: Merge pull request #15808 from pmclanahan/send-language-to-basket-964342

Bug 964342: Send language setting to basket. (r=fcampo)

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https://hg.mozilla.org/integration/gaia-central/rev/2e963b230adc
Author: Paul McLanahan <pmac@mozilla.com>
Desc: Bug 964342: Send language setting to basket.

* Add error codes to basket client.
* Use error code for invalid email instead of looking for a message.
Bumping manifests a=b2g-bump
Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/991f4d8d9f03
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Merge pull request #16007 from rnowm/VR-buttons-imputs

Bug 967843 - [VDR] Create new [BB] for buttons and input areas

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https://hg.mozilla.org/integration/gaia-central/rev/97d538a35cf4
Author: rnowm <arnau@arnaumarch.com>
Desc: Bug 967843 - [VDR] Create new [BB] for buttons and input areas
Bumping manifests a=b2g-bump