We are defaulting to csv mode now.
Adds support for multi-byte input delimiters (field and csv mode)
Make sure we can handle some funny cases as input delimiters.
Only LF line ending for cut functionality for now; More informative
output message.
Better error messages for invalid arguments.
Print invalid usage information.
Removes debugging left over.
Consolidate loops for field and csv mode.
More argument parsing and usage information.