added function to write cell arrays from internet
moved channel grouping step to setupEEGChanGroups.m and out of sensor_erpWin2R_Baleen.m
added in other trial info to sensor_erpWin2R_Baleen.m output
minor changes to plotting functions
add documentation to setupEEGChanGroups.m
updated file input for sensor_anova_Baleen.R