Bumping gaia.json for 5 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/af209cc74a95
Author: Yi-Fan Liao <begeeben@gmail.com>
Desc: Merge pull request #22861 from begeeben/964776_no_vibrating

Bug 964776 - [Flatfish][Settings] No vibrating alert motor, "Vibrate" option should be removed from Settings, r= Arthur Chen [:arthurcc]

* Rename customization/sensors.json to customization/device-features.json
* Modify build.js to replace sensors.json with device-features.json
* Show/Hide 'Vibrate' checkbox according to the 'vibration' value in device-features.json
* Update .gitignore and integration test

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https://hg.mozilla.org/integration/gaia-central/rev/a7c5658b3049
Author: Yi-Fan Liao <begeeben@gmail.com>
Desc: Bug 964776 - [Flatfish][Settings] No vibrating alert motor, "Vibrate" option should be removed from Settings

* Rename customization/sensors.json to customization/device-features.json
* Modify build.js to replace sensors.json with device-features.json
* Show/Hide 'Vibrate' checkbox according to the 'vibration' value in device-features.json
* Update .gitignore and integration test

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https://hg.mozilla.org/integration/gaia-central/rev/2af785a5bf94
Author: Yi-Fan Liao <begeeben@gmail.com>
Desc: Merge pull request #22397 from begeeben/1017328_pdf_files_render

Bug 1017328 - [Flatfish] PDF files render incorrectly in the browser app, r=yurydelendik

* Update pdf.js to version 1.0.700 to use the new web component based header (gaia-header)

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https://hg.mozilla.org/integration/gaia-central/rev/51590f338f5b
Author: Yi-Fan Liao <begeeben@gmail.com>
Desc: Bug 1017328 - [Flatfish] PDF files render incorrectly in the browser app

* Update pdf.js to version 1.0.700 to use the new web component based header (gaia-header)

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https://hg.mozilla.org/integration/gaia-central/rev/ddeae883f6d8
Author: Yi-Fan Liao <begeeben@gmail.com>
Desc: Bug 1017328 - [Flatfish] PDF files render incorrectly in the browser app

* Update pdf.js to version 1.0.524
Bumping manifests a=b2g-bump