ncurses 5.7 - patch 20110115

ncurses 5.7 - patch 20110115

+ modify Ada95/configure script to make the --with-curses-dir option
  work without requiring the --with-ncurses option.
+ modify test programs to allow them to be built with NetBSD curses.
+ document thick- and double-line symbols in curs_add_wch.3x manpage.
+ document WACS_xxx constants in curs_add_wch.3x manpage.
+ fix some warnings for clang 2.6 "--analyze"
+ modify Ada95 makefiles to make html-documentation with the project
  file configuration if that is used.
+ update config.guess, config.sub