Bug 922983 - fix locale inconsistent for zh-TW
Bug 924233: Add missing require to system tests.
Bug 899574 - updating marionette tests to not rely on old origin format
Bug 913397 - [Keyboard] Make keyboard app support 1.5x graphics
Bug 925331 - Pin input loses focus
Bug 920561 - Ensure LazyLoader.load does not slow down app rendering. r=etienne,kaze
Merge pull request #12830 from vingtetun/lazyload.no.in.apps.startup

Bug 920561 - Ensure LazyLoader.load does not slow down app rendering. r=...
Merge pull request #12572 from EragonJ/bug-920445

Bug 920445 - [Flatfish][homescreen] fix search_page enabled customizatio...
Merge pull request #12285 from luke-chang/913397_keyboard_1.5x_graphics

Bug 913397 - [Keyboard] Make keyboard app support 1.5x graphics, r=rudylu
Merge pull request #12810 from cctuan/922983

Bug 922983 - fix locale inconsistent for zh-TW
Merge pull request #12821 from wanderview/system-test-require

Bug 924233: Add missing require to system tests. r=etienne
 Bug 926875 - Move the iframe.focus call out of the hot path to avoid an expensive reflow. r=alive
Merge pull request #12844 from gitmai/bug-925331-pin-input-focus

Bug 925331 - Pin input loses focus (r=fcampo)
Merge pull request #12858 from vingtetun/focus.out.hot.path

 Bug 926875 - Move the iframe.focus call out of the hot path to avoid an...
Bug 926936 - Can't launch an app when running Gaia inside Firefox
bug 925520 - fix undesired closure, handle error case.

r=qDot
Merge pull request #12859 from KevinGrandon/bug_926936_nightly_fix_app_launches

Bug 926936 - Can't launch an app when running Gaia inside Firefox r=fabrice
Merge pull request #12864 from nullaus/fix-call-support-contacts

bug 925520 - fix undesired closure, handle error case.
Merge pull request #12836 from mikehenrty/bug-899574-integration-tests

Bug 899574 - updating marionette tests to not rely on old origin format, r=qDot
Bug 911681 - [FTU] replace tutorial images for large device

- use IAC
- add IAC handler for system app
- add IAC handler tests
- add tablet support
- add TutorialSteps for two devices
- add Tutorial related tests