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

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https://hg.mozilla.org/integration/gaia-1_3/rev/250087a37cca
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #17425 from yurenju/keyboard_predictive

Bug 986327 - test case "test_keyboard_predictive_key.py" get failed on t... a=testonly

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https://hg.mozilla.org/integration/gaia-1_3/rev/07a8f2f358e6
Author: Yuren Ju <yurenju@gmail.com>
Desc: Bug 986327 - test case "test_keyboard_predictive_key.py" get failed on travis-ci
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-1_3/rev/d9f8fd67e38a
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #17435 from yurenju/wappush

Bug 986380 - fix unit test case "auth_test.js" in wappush app a=testonly

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https://hg.mozilla.org/integration/gaia-1_3/rev/727a6914e336
Author: Yuren Ju <yurenju@gmail.com>
Desc: Bug 986380 - fix unit test case "auth_test.js" in wappush app
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-1_3/rev/2e7d2c62400b
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #17432 from evanxd/v1.3-bug-986345

Bug 986345 - Fix CI_ACTION=marionette_js failure on 1.3/1.3t branch. a=testonly

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https://hg.mozilla.org/integration/gaia-1_3/rev/e90d4e7b8176
Author: Evan Xd <itoyxd@gmail.com>
Desc: Bug 986345 - Add black list on Travis.
Bumping manifests a=b2g-bump
Merge b2g28 to v1.3t. a=merge