Strip whitespace
Move script from R folder so package doesn't fail
Rename estimation file and clean up code a bit
Redocument
Add TODO where subset needs to be removed

I don't have a good test to make sure I don't break this
Switch dat to data_ to avoid partial argument matching

`data` is an argument to mle() and so may be partially
matched by `dat`... if nothing else this makes
R CMD check issue a warning