further fixes for bug #108 (likely, will need improvement for OMEROMatlab createMask)
First attempt to convert binary ROI mask from OMERO to double. Code needs tidying!
Second go at uncompressing OMERO binary  masks.
Further mods to convert binary masks.
Experimental & currently broken items commented out of GUI menus.
Re-do binary to double ROI conversion using reshape rather than vec2mat.