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

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https://hg.mozilla.org/integration/gaia-central/rev/c44063c548e2
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #14494 from chuck-lee/bug-947826_update_wap_push_app

Bug 947826 - Update dataLength to data.length. r=gsvelto

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https://hg.mozilla.org/integration/gaia-central/rev/ccd7afebe4de
Author: Chuck Lee <chulee@mozilla.com>
Desc: Bug 947826 - Update dataLength to data.length. r=gsvelto

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https://hg.mozilla.org/integration/gaia-central/rev/ea626791e0bd
Author: Alive.Kuo <alegnadise@gmail.com>
Desc: Merge pull request #14749 from alivedise/bugzilla/948875/fullscreen-entry-points

Bug 948875 - Fix browser config helper on entry point parsing, r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/06535c4911ed
Author: Alive Kuo <alegnadise@gmail.com>
Desc: Bug 948875 - Fix browser config helper on entry point parsing