initial TBI Task Timing
initial TBI task timing
Forward and Backward progress attached to buttons. Basic play pause.
start/stop basic logic
Merge branch 'origin/master'

Conflicts:
	TBITaskPlanner/TBIExecuteStepView.h
	TBITaskPlanner/TBIExecuteStepView.m
	TBITaskPlanner/TBIExecuteTaskViewController.h
	TBITaskPlanner/TBIExecuteTaskViewController.m