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

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https://hg.mozilla.org/integration/gaia-1_3/rev/d9e3fc5a5fc6
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #17991 from bobsilverberg/power_button

Bug 991653 - [v1.3] Backport test_power_button_long_press.py test to v1.3

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https://hg.mozilla.org/integration/gaia-1_3/rev/a0bdb1f97c5e
Author: Bebe <bebe@mozilla.ro>
Desc: Bug 991653 - [v1.3] Backport test_power_button_long_press.py test to v1.3

This pulls in a commit for:
Bug 968751 - Write a test to open long-press power button menu

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https://hg.mozilla.org/integration/gaia-1_3/rev/8f9ec02addf0
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #17988 from bobsilverberg/cards_view_v1.3

Bug 991657 - [v1.3] Backport test_cards_view_with_two_apps.py test to v1.3

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https://hg.mozilla.org/integration/gaia-1_3/rev/84f6555d9a6b
Author: Sasha Kruglov <sashakruglov@hotmail.com>
Desc: Bug 991657 - [v1.3] Backport test_cards_view_with_two_apps.py test to v1.3

Replace test_cards_view_launch_app.py and test_cards_view_with_three_apps.py with the above test
Include a number of changes to gata_test from master which are needed
Pin to marionette-client 0.7.1.1 which is needed for v1.3
Bumping manifests a=b2g-bump