First pass at CRUD, and an initial pass at ajaxy CRUD.
   Rename abreviation to abbreviation.
Remove AJAXiness of CRUD, cleanup sizing, CRUD and add todo list.
Add delete confirmation dialog.
Cleanup New and delete a little.
Do not allow deletion of pre-seeded Measuring Units.
Minor cleanups.
Make it so system displays errors on save/delete.
Modify scroll actions to make it a bit more generic.
Scroll up and down.
Scroll list more generic, only requires _show page now.
Making scrolling more generic, starting with the controller class.
Probably wrong/not the rails way, but it works for me for now, I'm still learning.