Here's the updated patch taking into account the feedback I got from 
Bart and dana.

-l length has been converted to -c count

-L is placed before -U in the documentation

Documentation specifies that -r (raw) is for binary data.

Range checking has been added to the -L and -U options

Bug where -i overrode -L or -U has been fixed.  Bounds take precedence 
even if -i is redundantly specified.

Default count has been changed to 1 if -i, -L, and/or -U has been 
specified without -a

dana's completion function has been updated with these changes and included

A test file has been created (Not sure how useful it is, but it's there)