Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/832854832480
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #21546 from julienw/1033472-improve-node-modules-dependencies

Bug 1033472 - Gaia linter, gaia-build tests aren't using NODE_MODULES_GI...

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https://hg.mozilla.org/integration/gaia-central/rev/bf5f862ee2a5
Author: Julien Wajsberg <felash@gmail.com>
Desc: Bug 1033472 - Gaia linter, gaia-build tests aren't using NODE_MODULES_GIT_URL and so connect to Github ("make: *** [node_modules] Error 2") r=yurenju

This changes how the node_modules directory is generated. Indeed, we don't use
the temporary directory as a direct dependency now, because its name can change
and we don't need to run the new target if the name changes.

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https://hg.mozilla.org/integration/gaia-central/rev/e1d948755673
Author: Marshall Culpepper <marshall.law@gmail.com>
Desc: Merge pull request #21470 from marshall/bug1035520_ftuPingSystemV2

Bug 1035520: Make FtuPing instantiable. r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/0ae4b0fea9d6
Author: Marshall Culpepper <marshall@mozilla.com>
Desc: Bug 1035520: Make FtuPing instantiable. r=alive
Bumping manifests a=b2g-bump