migrated to express 4
Faster selendroid installer + faster ci.
Adding state flag so device/simulator system.log lines that do not have dates do not always get filtered out even if they are new log lines.
Merge pull request #2696 from curtissiemens/master

Do not filter out system.log lines that do not have dates
Merge pull request #2695 from sebv/quick-selendroid

Faster selendroid installer + faster ci.
Merge pull request #2687 from sebv/express-4

Migrated to express 4
Renamed keyevent to press_keycode and added long_press_keycode.
Merge pull request #2673 from paymand/long_press_keycode

Renamed keyevent to press_keycode and added long_press_keycode.
update appium-uiauto package and submodule