Use OrderedDict in spatiotemporal_cubes and test.
Merge pull request #1162 from lamblin/fix_test_spatiotemporal_cubes

Use OrderedDict in spatiotemporal_cubes and test.
When a NORB is pickled, it now changes its memmaps to be read-only, to prevent the memmaps from accidentally being edited after the save. The user can override this. Also fixed a bug that was causing some memmaps to be overwritten on load.
added features to browse_norb.py: you can now prevent pixel intensity normalization with a command-line option. Also, mousing over an image pixel displays that pixel's value.
add norb and norb_small yaml files to git repo
added layer to norb_small.yaml
added norb_cropped.yaml
bugfix in norb_cropped.yaml: n_classes: 50 -> 51
removed norb_cropped.yaml, which mistakenly got copied in from the norb_maxout branch
Merge branch 'norb' of https://github.com/SuperElectric/pylearn2 into norb

Conflicts:
	pylearn2/scripts/datasets/browse_norb.py