Bumping gaia.json for 4 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/5bf9ea2be393
Author: AndreiH <andrei.hutusoru@gmail.com>
Desc: Merge pull request #13329 from bobsilverberg/cp927126

Bug 927126 - Expand automated coverage around editing of gallery photos

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https://hg.mozilla.org/integration/gaia-1_2/rev/cfcbb5cb44cd
Author: AlinT <trifandreialin@gmail.com>
Desc: Bug 927126 - Expand automated coverage around editing of gallery photos

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https://hg.mozilla.org/integration/gaia-1_2/rev/fdbfdb477f03
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #13308 from bobsilverberg/cp918727

Bug 934139 - [v1.2] Update videoplayer app and tests to be in line with master

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https://hg.mozilla.org/integration/gaia-1_2/rev/0567e13b4811
Author: AlinT <trifandreialin@gmail.com>
Desc: Bug 918727 - Update locator for video tests. r=zcampbell r=fstrugariu

Conflicts:
	tests/python/gaia-ui-tests/gaiatest/apps/videoplayer/app.py