Formatting, mostly for line length.
Remove wasted lines.
Formatting and added plurals.
Fixed spacing.
Added tests for bumpy slicing.
Added exception type..
Correctly match all types.
Added inline function to copy the units[] array.
Formatting and commenting.
Commenting and formatting.
copy() function for the numpy version.
Removed deleted lines.
Implemented __getitem__() for the bumpy version.