+20091107
+ + improve test/ncurses.c color-cycling test by reusing attribute-
+ and color-cycling logic from the video-attributes screen.
+ + add ifdef'd with NCURSES_INTEROP_FUNCS experimental bindings in form
+ library which help make it compatible with interop applications
+ (patch by Juergen Pfeifer).
+ + add configure option --enable-interop, for integrating changes
+ for generic/interop support to form-library by Juergen Pfeifer
+