Correct attribution of copyright
Dont need to remap sequences which are already valid utf8
add bom to mappings
Put a BOM in the mappings file
avoid things going wrong if the mappings file is edited in windows
Show the url if possible
Strip bom off input file
Some new mappings
Ensure output file has unicode byte order mark
Excel will interpret files with the UTF-8 BOM as UTF-8. Great!
Show the source line number containing a bad sequence
Document required gems
Removed unusued requires
We display the result of all mapping applications (red->green).
A summary list of outstanding mappings is printed, with line numbers in
the mappings file to aid finding the right line to change.