utf8 cpp library
Release 2.1

This is a minor feature release - added the function peek_next. 

Changes from version 2.o
- Implemented feature request [ 1770746 ] "Provide a const version of next() (some sort of a peek() )

Files included in the release: utf8.h, core.h, checked.h, unchecked.h, utf8cpp.html, ReleaseNotes
