Bumping gaia.json for 3 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/02a08136da7d
Author: Carmen Jiménez <cjc@tid.es>
Desc: Merge pull request #14803 from mcjimenez/bug951552

Bug 951552 - Incorrect behavior when first boot is run with a pin locked SIM (and no PIN is entered)
(cherry picked from commit 5e5c9f71911e2c83c2552273b3407ab4ea60e56c)

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https://hg.mozilla.org/integration/gaia-1_2/rev/8e78e0e752a5
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #14609 from arroway/bug-831948

Bug 831948 - WiFi Tethering should default to WPA2
(cherry picked from commit 47266e33ea9f48c61c6cc8697999ede8477fe20e)

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https://hg.mozilla.org/integration/gaia-1_2/rev/73e8e1ae4d37
Author: Fernando Campo <fernando.campo@o2.com>
Desc: Merge pull request #14649 from fcampo/sms-overlay-style-broken-947285

Bug 947285 - [Messaging] Notice style is broken (r=julienw)
(cherry picked from commit 49cb38d06740e6b49ff30e89e11f428386250329)
Bug 937152 - Remove XPCWrappedJS::mMainThread and mMainThreadOnly. r=bholley
Bug 950909 - Remove XPCWrappedJS hack from Codegen.py on branch. r=bz (over email)
Bug 950909 - Forward native aggregation to the root XPCWrappedJS. r=mccr8,sr=smaug a=RyanVM CLOSED TREE
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/3b978a188491
Author: Fabien Cazenave <fabien@cazenave.cc>
Desc: Merge pull request #14611 from arroway/bug-797661

Bug 797661 - Hotspot should have random password, r=kaze
(cherry picked from commit 2be37d0b91deabc6f3efafbe01b1dec3e8643a67)
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/f48e4d3cd1f7
Author: gasolin <gasolin@gmail.com>
Desc: Bug 949799 - [B2G][Geolocation] 'More Info' icon is unresponsive on the Geolocation screen
Bug 950590 - Use nsRefPtr for gfxFontGroup's reference to the user font set, and support changing it from canvas context. r=roc, a=bajaj
Bug 899686 - Mock out nsITimer to avoid race condition in tests. r=yoric, a=test-only
Bug 918880 - MaybeAllowOfflineAppByDefault must work on child processes. r=jduell, a=koi+
Bug 918880 - Use principal for permissions checks. r=honzab, a=koi+
Bug 918880 - Gracefully recover from scheduleUpdate() failure. r=fabrice, a=koi+
Bug 951361 - Enable pref to avoid decoding hidden images on load. r=fabrice, a=koi+
Merge b2g26 to v1.2f. a=merge