Add support for alphanumeric options
Add an eol between each option groups
Merge pull request #6 from wichtounet/alnum_options

Add support for alphanumeric options
Merge pull request #7 from wichtounet/space_between_groups

Add an eol between each option groups
start converting to String for Unicode
more icu::UnicodeString
unicode
unicode help
better help example
unicode configuration
Merge branch 'master' into default_values

Conflicts:
	src/cxxopts.hpp