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

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https://hg.mozilla.org/integration/gaia-central/rev/732f412e37ce
Author: russnicoletti <rnicoletti@mozilla.com>
Desc: Merge pull request #26341 from russnicoletti/bug-1101816

Bug 1101816 - [RTL][Video] video controls are reversed in RTL context r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/e7f056210900
Author: Russ Nicoletti <rnicoletti@mozilla.com>
Desc: Bug 1101816 - [RTL][Video] video controls are reversed in RTL context

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https://hg.mozilla.org/integration/gaia-central/rev/7a2007386608
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #26383 from KevinGrandon/bug_1103627_marionette_client_loader_system

Bug 1103627 - [System] Use a marionette client loader to include the system app

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https://hg.mozilla.org/integration/gaia-central/rev/e6d15e07c499
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1103627 - [System] Use a marionette client loader to include the system app r=etienne
Bumping manifests a=b2g-bump