added spaces around colons in docstrings, to be sphinx-friendly
added SmallNORB.label_to_index map
commit before changing Norb's label remapping so that labels[:, :5] are densely populated.
revert erroneous change to SmallNORB._categories
bugfix in SmallNORB
added browse_norb.py
added new_norb.py
done coding up new_norb; next: change browse_norb.py to use it, for debugging.
modifying browse_norb.py to work with new_norb.py
debugging browse_norb.py to work with new_norb.py
browse_norb.py now working with new_norb.py. Next: add option to browse test and train sets together
adding 'both' option to which_setk argument of Norb
added 'both' option to NORB constructor's which_set argument
browse_norb.py: added option to swap left and right images, so you can view in 3D by crossing your eyes
ready to rebase to master
pep8, doc fixes
test_format.py fixes for new_norb.py
'norb' branch now passes test_format.py
merge in changes from modcon to loam
Addressed some of Pascal Lamblin's PR comments