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

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https://hg.mozilla.org/integration/gaia-central/rev/e3849c7faaac
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24971 from KevinGrandon/bug_1080348_keyboard_testing_path

Bug 1080348 - Failing TC Gu test: keyboard-test/unit/mock_navigator_input_method_test.js

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https://hg.mozilla.org/integration/gaia-central/rev/8d039aad7465
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1080348 - Failing TC Gu test: keyboard-test/unit/mock_navigator_input_method_test.js r=kgrandon
Bumping manifests a=b2g-bump