Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/671bf567ceb9
Author: Ed Morley <emorley@mozilla.com>
Desc: Revert "Bug 909201: Editing names doesn't update properly." for failures in list_test.js

This reverts commit 08b7b18fd3e4ad9f90f7b2c9a66efa725c7b902c.

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https://hg.mozilla.org/integration/gaia-central/rev/b3f8cab3f6d1
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #17181 from gasolin/issue-981550

Bug 981550 - Apps can cause permissions prompts in other apps, r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/2000b48758f3
Author: gasolin <gasolin@gmail.com>
Desc: Bug 981550 - Apps can cause permissions prompts in other apps
Bumping manifests a=b2g-bump