Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/e01e38b97673
Author: Gabriele Svelto <gsvelto@mozilla.com>
Desc: Bug 1067731 - Display immediately WAP Push signal indication messages with the signal-high action set r=julienw

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https://hg.mozilla.org/integration/gaia-central/rev/f310a5ce2ed7
Author: Ricky Chien <ricky060709@gmail.com>
Desc: Merge pull request #27008 from RickyChien/bug-1024386

Bug 1024386 - execute jshint for build director r=@cctuan

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https://hg.mozilla.org/integration/gaia-central/rev/df387e9fb90f
Author: Ricky Chien <ricky060709@gmail.com>
Desc: Bug 1024386 - execute jshint for build director
Bumping manifests a=b2g-bump