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

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https://hg.mozilla.org/integration/gaia-central/rev/eb2336812834
Author: Fabrice Desré <fabrice@desre.org>
Desc: Merge pull request #18476 from jrburke/bug998799-normalize-alameda-defines

Bug 998799 - alameda.js depends toString()-ing functions

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https://hg.mozilla.org/integration/gaia-central/rev/933150b50980
Author: jrburke <jrburke@gmail.com>
Desc: Bug 998799 - alameda.js depends toString()-ing functions
Bumping manifests a=b2g-bump