Bug 971552 - [System2] Instantiable SleepMenu r=alive
Bug 1010651 - (vertical-homescreen) RocketBar missing search icon
Bug 1010021 - Add integration test to cover 3rd-party IME installation.
Merge pull request #19363 from RudyLu/ime/Bug1010021

Bug 1010021 - Add integration test to cover 3rd-party IME installation.
Merge pull request #19541 from crdlc/bug-1010651

Bug 1010651 - (vertical-homescreen) RocketBar missing search icon
Merge pull request #19353 from KevinGrandon/bug_971552_system2_sleep_menu

Bug 971552 - [System2] Instantiable SleepMenu
statusbar-background
fontface change for header area, not yet finished (needs ultralight and pm/am info)
header: margin/padding adjustment
lockslide: bg
slider, background, first top layer
slider: add background & some refactor
slider, handle: init
slider: handle, sliding, without code refactor
code refactor & fix regression
translucent circle background for icons
init new arrow pos
revert code refactoring of slideTo for further changes
handle morphing should be in white now
preliminary arrow positioning