prex_profile: now adds behav scripts to the pythonpath
dist_bins: added a restrict_chunks option; changed perm test scrambling to be within run adn category
prex_utils.py: module with helpers for python analysis scripts
write_cat_onsets.py: exports onset information for use with fsl
example fsf file for cat model
edited cat_level1.fsf to match options in item_level1.fsf
test_rsa.py: added code to run classification xval searchlight
prex_item_rsa_roi.py: test for significance of item and category-related pattern similarity