Wrap Traits
Add a method to quote command line arguments on Windows
Rename Option to OptionBase and Arg to Option
Wrap Option::parseValue into Option::parse
Rename CmdLine::error to CmdLine::addError
Make addError public. Drop the version taking an index into the command-line array
Additional line breaks in the usage message
Merge WordWrap.cpp into CmdLine.cpp
Add void specializations to support callback functions
Really initialize the value of an option using init()
Cleanup
Update the test app
Build a static lib