System start_activity and start_action should allow -W parameter
Created by: mcgeagh
When performing an am start, i want to provide the -W parameter, as this waits and reports back useful timing statistics.
Suggestion: Add a parameter to start_activity and start_action functions in system.py to allow the use of the -W parameter.
Optionally: -S will first force-stop the app before attempting applaunch (i see that being useful - saves you having to do a force-stop command beforehand). Another optional parameter perhaps?