Bumping gaia.json for 7 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/436fd2791fc4
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Merge pull request #22381 from eeejay/bug-914941

Bug 914941 - Put description text after main label. r=eragoni

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https://hg.mozilla.org/integration/gaia-central/rev/267c30d2efc5
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Bug 914941 - Put description text after main label.

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https://hg.mozilla.org/integration/gaia-central/rev/c30ac5be4723
Author: Ghislain 'Aus' Lacroix <aus@noiseport.org>
Desc: Merge pull request #22945 from nullaus/bug1053509

bug 1053509 - Use plain js download object when download succeeds. r=crd...

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https://hg.mozilla.org/integration/gaia-central/rev/28d8b9331865
Author: Ghislain 'Aus' Lacroix <aus@mozilla.com>
Desc: bug 1053509 - Use plain js download object when download succeeds. r=crdlc

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https://hg.mozilla.org/integration/gaia-central/rev/3fbe30d41073
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #22858 from svic/Bug_971521

Bug 971521: [System2] Instantiable NfcUtils.

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https://hg.mozilla.org/integration/gaia-central/rev/7b03ce51e228
Author: Garner Lee <garner.lee@telekom.com>
Desc: Bug 971521: [System2] Instantiable NfcUtils. Part 2. Contacts app.

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https://hg.mozilla.org/integration/gaia-central/rev/ac275a39e942
Author: Garner Lee <garner.lee@telekom.com>
Desc: Bug 971521: [System2] Instantiable NfcUtils. Part 1.
Bumping manifests a=b2g-bump