ENH: pypreprocess conf files now have extension .ini
BF: broken "See complete configuration used for preprocessing here..." link in report page
BF: restored deleted .ini file (faces)
ENH+REFACTOR: externalize tempita module
REFACTOR: rmed install_dependencies (the user is in-charge...)
BUGFIX: copying slice-timingcorrected files to subject output dir
BUGFIX: adaquate msg whether hardlinking or copying files
BUGFIX: committing output files explicity in each node before node returns