Add multiple types, benchmark.
Show 2D example in test.
Add ufunc with pre-provided loop. Cleanup.
Ufunc snapshot.
Minor cleanup of ufuncs.
Add scalar types.
Add more concepts.
Rotate long heading.
Minor spacing fixes.
ENH: complete vagrant setup automated.
FEAT: custom dtypes
Add ufunc slide on templates.  Add exercize.
Update ufunc exercize to be somewhat simpler with only one parameter.
FEAT: adding custom dtype skeletons.
ENH: adding flying baby pic.
Add Cython example.
Update building instructions.
Remove left-over todo.
Fix typo.
Fix typo.