BUGFIX: multiple tiny bugs
nipype_preproc_spm_moaepilot.py: not stripping off orientation meta data (seems) OK btw
io_utils.py: added new function for computing mean of differently shaped images
nipype_preproc_spm_utils.py: now plotting only mean 3D image of all sessions
REFACTOR: code cleaning ..
ENH: now reporting failed subjects with 404
nipy_glm_openfrmi.py -> nipy_glm_openfmri.py
subject preproc results (subject_id, func, anat, output_dir, etc.) now dumped in json (back-end)