Bumping gaia.json for 1 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/28888c5fd0c5
Author: dwi2 <dwi2@dwi2.com>
Desc: Merge pull request #14797 from dwi2/bug937561

Bug 937561 - get both available network list and known network list, and...
(cherry picked from commit 065cba7bd8c3d8ad0ec424c2c2893b96bae6e54d)
Bumping gaia.json for 1 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/ca962ba82512
Author: Julien Wajsberg <felash@gmail.com>
Desc: Revert "Merge pull request #14611 from arroway/bug-797661"

This reverts commit 724d36716bcbbc5cee1af18b94cc328c289d0ccc.
Bug 953373 - Use NewObjectWithType when cloning regexps. r=bhackett, a=koi+
Bug 936056 - Be consistent about the thisobj we pass to getters. r=jorendorff, a=bajaj
Bug 939472 - Remove buffer from multiview list when neutered. r=billm, a=preeti
Bug 950452 - Fix SETARG in IonBuilder. r=jandem, a=bajaj
Backed out changeset a87f1f662a6c (bug 939472), a=bustage
Bug 939472 - Remove buffer from multiview list when neutered. r=billm, a=preeti
Bug 953114 - Fix GetElementIC typed array issue. r=efaust, a=koi+
Bug 946243 - IonMonkey: Don't remove MComputeThis during EliminateDeadResumePointOperands. r=jandem, a=koi+
Bug 907689 - Use example.org as the blocklist URL. r=mixedpuppy, a=test-only
Merge b2g26 to v1.2f. a=merge