Bumping gaia.json for 3 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/3d8b6baf9d3b
Author: Mike Pennisi <mike@mikepennisi.com>
Desc: Bug 885259 - [SMS/MMS] Edit mode can be enabled while composing a message r=borjasalguero

As per the UI specification, the "Edit Mode" button should be available
while a message is being composed, but when Edit Mode is entered, the
Compose field should be completely hidden.

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https://hg.mozilla.org/integration/gaia-central/rev/85c55424a27b
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Merge pull request #10706 from lissyx/bug883341

Bug 883341 - Ensure that the 'pick' activity is valid for Contacts

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https://hg.mozilla.org/integration/gaia-central/rev/d51f27692e85
Author: Alexandre Lissy <lissyx+github@lissyx.dyndns.org>
Desc: Bug 883341 - Ensure that the 'pick' activity is valid for Contacts

When the user tap on an <input type="file"> field, this triggers a
'pick' activity with no data, hence any app implementing the 'pick'
activity handler will be proposed. However, the Contacts app does not
know how to properly handle this case (in fact it does not make sense),
so we force the filtering to be done with the proper mime type: Contacts
app will not be proposed anymore for 'pick' activity triggered from
<input type="file"> user interaction. Thanks to Andrea Marchesini
(:baku) for suggesting this!