Added ability to disable and re-enable RCs. This is useful if you want to make the ability to respond gaze-contingent, or contingent on other response collectors in general. So you start the RC at the start of the trial, but immediately disable and don't re-enable until you need it. It will time from trial start but only be active when needed.
Bugfix in continuousGaze, which wasn't continuous (it stopped on response). Also added xy_coords needed for new GazePredictor RC.
Added Craig Sanders' GazePredictors response collectors. Fast gaze-contingent window changing using prediction of saccade landing sites (in our experience, faster boundary paradigm on commodity hardware)
I think another bugfix but not 100 pct sure why we did this anymore.