allow to read pl2 files
switch to new pl2 compliant plexon SDK
Merge branch 'master' into pl2
add commands to toggle eyelink left/right eye with occluder commands
Merge branch 'pl2' of http://github.com/iandol/opticka into pl2
path fixes
micro fix
Merge remote-tracking branch 'origin/origin/pl2' into pl2

Conflicts:
	runExperiment.m
allow custom IP address for eyelink (no more public IP address used!)
and other small improvementes
spence protocols
small fixes