Update copyright and encoding in all file headers.
Merge branch 'master' into feature/update-file-metadata
Remove a couple leftover `__docformat__`s.
Fixes bug with cart_coords LocalArray property.

Includes regression test.
assertEquals -> assertEqual

dude.
Merge pull request #219 from enthought/feature/update-file-metadata

Update copyright and encoding in file headers
Merge pull request #223 from enthought/bugfix/fix-cart-coords-local-property

Fixes bug with cart_coords LocalArray property.
Merge branch 'master' into feature/rename-save-and-load
Change some docstring refs to `.dap` to `.dnpy`.
Improve the docstrings for save/load_dnpy.