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

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https://hg.mozilla.org/integration/gaia-1_4/rev/2d3830a2e331
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #18283 from chirarobert/v1.4_airplane

Bug 988316 - enable/disable wifi n gaiatest is polluting the global wifi...

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https://hg.mozilla.org/integration/gaia-1_4/rev/e2c707876c9a
Author: Zac <zcampbell@mozilla.com>
Desc: Bug 988316 - enable/disable wifi n gaiatest is polluting the global wifi scopeope and stopping airplane mode from working correctly
Bumping manifests a=b2g-bump