Bumping gaia.json for 8 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-2_1/rev/e616396756e1
Author: Andrew Sutherland <asutherland@asutherland.org>
Desc: Bug 1062728 - [email/pop3] POP3 sync breaks on messages that lack a Date header. r=mcav

land https://github.com/mozilla-b2g/gaia-email-libs-and-more/pull/340

========

https://hg.mozilla.org/integration/gaia-2_1/rev/7e9010347810
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1071953 - [Rocketbar] Tweak visibility controls for open-window.showApp and apploading.stayBackground r=alive

========

https://hg.mozilla.org/integration/gaia-2_1/rev/2f4e5bda8549
Author: Rudy Lu <me@rudy.lu>
Desc: Bug 1050558 - Bosnian Word suggestion.

========

https://hg.mozilla.org/integration/gaia-2_1/rev/1134d29dc7fb
Author: Eli Perelman <eli@eliperelman.com>
Desc: Bug 1071388 - Hide the SHB during the boot logo sequence r=etienne

========

https://hg.mozilla.org/integration/gaia-2_1/rev/c012cb73d7b7
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24302 from KevinGrandon/bug_1071112_rocketbar_postmessage_error_logged

Bug 1071112 - [Rocketbar] Migrate to using promises for search connection init

========

https://hg.mozilla.org/integration/gaia-2_1/rev/635673bb9fd7
Author: Dale Harvey <dale@arandomurl.com>
Desc: Bug 1069243 - Dont prefetch favicons for history. r=kgrandon

========

https://hg.mozilla.org/integration/gaia-2_1/rev/95681d4146e1
Author: albertopq <apastor@mozilla.com>
Desc: Bug 1067356 - Changing notifications font-size

========

https://hg.mozilla.org/integration/gaia-2_1/rev/be36b7e6ee99
Author: Dale Harvey <dale@arandomurl.com>
Desc: Bug 1063685 - Add getAppByURL to the AppWindowManager. r=alive

Conflicts:
	apps/system/js/places.js
Bumping manifests a=b2g-bump