Added file phantomas/geometry/rois.py
Added function to create cortical shell mask.
Renamed some variables in spherical_shell_mask().
Minor changes
Creation of patches (need fixes).
Added a script phantomas_rois
Added script phantomas_rois in setup.py
Added a line to export connectivity matrix in phantomas_rois
Merge pull request #9 from ecaruyer/connectivity-rois

Connectivity rois