Make ncurses recognize UTF8 support

Add the U8#1 option to the terminfo file, this is an extended option in
the terminfo specifying support for utf8 line graphics.

This fixes some issues with ncurses not rendering utf8 glpyhs for it's
extended ASCII set when termite supports utf8 just fine.
Merge pull request #85 from EvanPurkhiser/fixup/ncurses-utf8-terminfo

Make ncurses recognize UTF8 support