Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/1abfd8e7a805
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Merge pull request #16149 from davidflanagan/bug963917-3

Bug 963917: reduce Gallery memory use (and fix leak) while scanning r=dkuo

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https://hg.mozilla.org/integration/gaia-central/rev/e2e30ae8edcb
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Bug 963917: reduce Gallery memory use (and fix leak) while scanning

force software canvases for thumbnail and preview creation with willReadFrequently

Free canvas memory after creating a thumbnail

Make sure our thumbnail blobs are file-backed not memory-backed

update mediadb docs
(cherry picked from commit 4b5eaa4a2823d8961b80a3b975b1eeed92b9fcb7)

Conflicts:

	apps/gallery/js/MetadataParser.js
	apps/gallery/js/gallery.js

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https://hg.mozilla.org/integration/gaia-central/rev/e29948e74a5c
Author: Marcus Cavanaugh <m@mcav.com>
Desc: Merge pull request #16186 from mcav/bold-date

Bug 930563 - [B2G][L10n][Clock] Chinese Traditional: Highlight date. r=gnaneswar

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https://hg.mozilla.org/integration/gaia-central/rev/1cabb0ea97ae
Author: Marcus Cavanaugh <m@mcav.com>
Desc: Bug 930563 - [B2G][L10n][Clock] Chinese Traditional: Highlight date instead of first number displayed.
Bumping manifests a=b2g-bump