Merge pull request #1 from JoesCat/master

updated to version unicode 6.3, added two functions to return pointers to const char data
Accept @+ as a character notice.

Some character notices appear partway through added info and we lose extra
info because of this. Now notice is included, plus extra info is kept too.
Only need to keep function calls in default=0=EN, not needed with others.

French library kept for compatibility with programs that may still use it.
Update README.md
Acknowledgement copyright notice that data came from www.unicodenames.org
Update config.guess and config.sub to latest version available
autotools setup for libuninameslist 0.3

Mostly prepare to build version 0.3, also added version() function so that
users can check to see which version of NamesList.txt they are reading.