Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_4/rev/5b11b683281a
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #20750 from RudyLu/keyboard/Bug1015541

Bug 1015541 - choosing a word suggestion after moving the caret changes the wrong text
r=janjongboom
(cherry picked from commit 73b9c780c54ec1c6fcf47c2ce467672d3c5aaded)
a=1.4+

Conflicts:
	apps/keyboard/js/keyboard.js
Bumping manifests a=b2g-bump
Bug 994176 - Create branched versions of marionette-client and consumer packages. r=ahalberstadt a=test-only