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

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https://hg.mozilla.org/integration/gaia-central/rev/52e2f9d348fb
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "Bug 998776 - [Follow up of Bug 991446] Fix the broken coverage result on console"

This reverts commit 023d2f072a5f4703decb25dbff4614bb61ff904e.

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https://hg.mozilla.org/integration/gaia-central/rev/965d086d922f
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "Bug 998776 - Follow-up, update gaia_node_modules.revision"

This reverts commit 4216a38e9afbfec52561ce733cbfa02bfd18efc7.

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https://hg.mozilla.org/integration/gaia-central/rev/1a43fdd1be8e
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #18565 from cctuan/973454-2

Bug 973454 - [settings] refactor App permissions panel with AMD pattern

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https://hg.mozilla.org/integration/gaia-central/rev/53b0f32b6a65
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 973454 - [settings] refactor App permissions panel with AMD pattern
Bumping manifests a=b2g-bump