Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-1_4/rev/f1731f2b1c38
Author: Ghislain 'Aus' Lacroix <aus@noiseport.org>
Desc: Merge pull request #22901 from nullaus/v1.4

Merge pull request #22799 from nullaus/bug1049790

========

https://hg.mozilla.org/integration/gaia-1_4/rev/1ddbd763121b
Author: Ghislain 'Aus' Lacroix <aus@noiseport.org>
Desc: Merge pull request #22799 from nullaus/bug1049790

bug 1049790 - Use one event listener for system time changes. r=fcampo
(cherry picked from commit 408e24a54fb13217428fa9387ca01044a1ea3da4)

Conflicts:
	shared/js/tz_select.js
Bumping manifests a=b2g-bump