Minor bug fixes
add run_image_qa.py, runs qa and creates confound_regressors.txt containing motion pars, motion spikes and intensity spikes
Rename dualregress_userscript_DST.py and add bugfixes
ica/python_dual_regress.py: Minor edits to resolve differences
in function names.

scripts/dualregress_userscript_example.py: First version working
from commandline. Tested on subset of data.