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

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https://hg.mozilla.org/integration/gaia-central/rev/d7e63029d487
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #21634 from KevinGrandon/bug_1005707_update_node_modules

Bug 1005707 - Update node modules for, Intermittent test suite failures, TypeError: Cannot read property 'deleteSession' of null

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https://hg.mozilla.org/integration/gaia-central/rev/c33ba41b0de9
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1005707 - Update node modules for, Intermittent test suite failures, TypeError: Cannot read property 'deleteSession' of null
Bumping manifests a=b2g-bump