Made some changes to deal with NaNs within ROIs and within timeseries. Now, you put in the minimum number of voxels with non-NaN values for an ROI to be considered "good." Else, the mean value returned will be NaN. You also put in a the minimum number of timepoints where the mean from a given ROI must not be NaN. Else, any correlation between the beta series of that ROI and the beta series of any other ROI will be NaN.
Merge branch 'master' of https://github.com/tsalo/Misc_fMRI_code

Conflicts:
	lssCorrelation.m