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

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https://hg.mozilla.org/integration/gaia-central/rev/ed0e789fe38f
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #22283 from KevinGrandon/bug_1045151_homescreen_localize_master

Bug 1045151 - Cancel button on home screen not localized on 2.0

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https://hg.mozilla.org/integration/gaia-central/rev/8d0c4cf5a398
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1045151 - Cancel button on home screen not localized on 2.0 r=gandalf

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https://hg.mozilla.org/integration/gaia-central/rev/197ae9c74949
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Merge pull request #22307 from arcturus/bug-1042586

Bug 1042586 - [Contacts][ICE] Create a DataStore for ICE Contacts r=michalb

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https://hg.mozilla.org/integration/gaia-central/rev/009865143986
Author: Francisco Jordano <fjordano@mozilla.com>
Desc: Bug 1042586 - [Contacts][ICE] Create a DataStore for ICE Contacts r=michalb
Bumping manifests a=b2g-bump