Bumping gaia.json for 4 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/4013a01e6d32
Author: Olav Nymoen <olav@comoyo.com>
Desc: Merge pull request #11481 from comoyo/allow_open_remote

Bug 819882: Allow all apps to open OOP windows. r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/cd64075d3f27
Author: Olav Nymoen <olav@comoyo.com>
Desc: Bug 819882: Allow all apps to open OOP windows. r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/24e7f09e1058
Author: Sam Joch <samuel@guiora.com>
Desc: Merge pull request #11494 from pivanov/bug-904013

Bug 904013 - [Contacts] Replace "+" Icon in contacts for 1x, 1.5x and 2x r=samjoch

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https://hg.mozilla.org/integration/gaia-central/rev/b12cc9c6d5a7
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 904013 - [Contacts] Replace "+" Icon in contacts for 1x, 1.5x and 2x