turn DICOM real orientation 'OFF' in XTK.
all other files format are still displayed in theirs 'real' space
most of the time, if people use DCM, they want to look at the actual slices.
if people use other file formats, it is probably because they also have some tracts or surfaces to be displayed.
better fix will be to allow user to switch between 'real space' and 'acquisition space', on the XTK side. on the TODO list...
Merge branch 'master' of https://github.com/slicedrop/slicedrop.github.com