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

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https://hg.mozilla.org/integration/gaia-1_4/rev/79c986f56226
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #19310 from AndreiH/bug1010768_v1.4

Bug1010768 v1.4

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https://hg.mozilla.org/integration/gaia-1_4/rev/70818e49722c
Author: Andrei Hutusoru <andreihutusoru@P5069.(none)>
Desc: Bug 1010768 - Intermittent fail of test_settings_cell_data.py
Bumping manifests a=b2g-bump