Merging ub-launcher3-qt-r1-dev, build 5710902

Test: Manual

Bug:115582915 P2 [Testing] Make all launcher tests gesture-stable
Bug:127350205 P1 Ensure that Launcher is always created and is in right configuration
Bug:131116002 P2 Convert tests to TAPL and enable them
Bug:131356741 P1 use transferFocus to implement SWIPE DOWN on homescreen to open noti shade
Bug:133891845 P2 TAPL: need clearer diags when a crash dialog is over Launcher or there is lock screeen
Bug:136215685 P1 Flake: swiping up from Home to Overview in 2-button mode sometimes fails
Bug:136278866 P2 Temporary workarounds to make tests pass on Cuttlefish
Bug:136280872 P1 Flake: Flinging in all apps opens workspace
Bug:64712476 P3 Import translations for dev branches
Change-Id: I39841b30840e9d88a2b98b21c4aba1c44d2bc446