Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/a68c734ba8ec
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Merge pull request #25407 from Cwiiis/bug1084252-missing-airplane-mode-dialog

Bug 1084252 - Fix airplane mode dialog not displaying. r=steveck,thills

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https://hg.mozilla.org/integration/gaia-central/rev/3ad27e0006ac
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 1084252 - Fix airplane mode dialog not displaying. r=steveck,thills
Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/16f1b5b5f565
Author: Gareth Aye <gaye@mozilla.com>
Desc: Merge pull request #25673 from gaye/bug-857284

Bug 857284 - Only fire one alarm for past events when multiple exist r=millermedeiros

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https://hg.mozilla.org/integration/gaia-central/rev/46acc6145ff4
Author: gaye <gaye@mozilla.com>
Desc: Bug 857284 - Only fire one alarm for past events when multiple exist

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https://hg.mozilla.org/integration/gaia-central/rev/0455d58faef7
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Merge pull request #25883 from Cwiiis/bug1084252-fixup

Bug 1084252 - Add TODO comment about removing duplicated style. r=steveck

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https://hg.mozilla.org/integration/gaia-central/rev/efee836dd5b9
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 1084252 - Add TODO comment about removing duplicated style. r=steveck

Once the attachment menu uses the shared options menu element, we want to
remove the duplicated style rules in sms.css.
Bumping manifests a=b2g-bump