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

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https://hg.mozilla.org/integration/gaia-1_4/rev/250afd3fda3b
Author: russnicoletti <rnicoletti@mozilla.com>
Desc: Merge pull request #17215 from russnicoletti/bug982743

Bug 982743 - [B2G][Clock]Timer section's Resume button illuminates and doesn't resume timer countdown r=mcav

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https://hg.mozilla.org/integration/gaia-1_4/rev/4ef9a78cbd69
Author: dwi2 <dwi2@dwi2.com>
Desc: Merge pull request #14531 from dwi2/bug894744

Bug 894744 - Use localStorage event to make inter-page communication...
Bumping manifests a=b2g-bump