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