Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/1894db5b583e
Author: Carsten Book <tomcat@mozilla.com>
Desc: Merge pull request #21349 from tauzen/Bug1026536

[NFC] NfcManager.handleNdefDiscovered test cases needed, possible refactoring, r=gweng

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https://hg.mozilla.org/integration/gaia-central/rev/7ab9dc02de0b
Author: Krzysztof Mioduszewski <kmioduszewski@gmail.com>
Desc: [NFC] NfcManager.handleNdefDiscovered test cases needed, possible refactoring

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https://hg.mozilla.org/integration/gaia-central/rev/e798a0555738
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #21389 from RudyLu/ime-mgmt/Bug1030086

Bug 1030086 - Keyboard gets stuck after submitting a form by pressing.
r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/a40c852b141b
Author: Rudy Lu <me@rudy.lu>
Desc: Bug 1030086 - Keyboard gets stuck after submitting a form by pressing
the enter key.
 - Ignore the resize request from Keyboard app when the keyboard frame
   is transitioning out.

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https://hg.mozilla.org/integration/gaia-central/rev/ffe16a9444ef
Author: Carsten Book <tomcat@mozilla.com>
Desc: Merge pull request #21403 from kamituel/Bug_948823_nfc_handover_manager_comments

Bug 948823: Rewrite comments so they're jsdoc compatible. Mark private m... r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/8d6835a47de3
Author: Kamil Leszczuk <kamituel@gmail.com>
Desc: Bug 948823: Rewrite comments so they're jsdoc compatible. Mark private methods with underscore.
Bumping manifests a=b2g-bump