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

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https://hg.mozilla.org/integration/gaia-1_4/rev/ddd49eebe792
Author: Marcus Cavanaugh <m@mcav.com>
Desc: Merge pull request #17916 from mcav/v1.4-timerrest

Bug 982789 - [B2G][Clock]Set Timer intermittently starts countdown at incorrect starting point. r=millermedeiros a=1.4+

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https://hg.mozilla.org/integration/gaia-1_4/rev/cbdb80ce1a22
Author: Marcus Cavanaugh <m@mcav.com>
Desc: Bug 982789 - [B2G][Clock]Set Timer intermittently starts countdown at incorrect starting point. r=millermedeiros
Bumping manifests a=b2g-bump