docs: public boolean waitForEmptyActivityStack(int timeout)
  	{
  		if(config.commandLogging){
  			Log.d(config.commandLoggingTag, "waitForEmptyActivityStack("+timeout+")");
  		}
  		
  		return waiter.waitForCondition(
  				new Condition(){
  					@Override
  					public boolean isSatisfied() {
  						return activityUtils.isActivityStackEmpty();
  					}
  				}, timeout);
  	}