+20080503
+ + modify screen.* terminfo entries using new screen+fkeys to fix
+ overridden keys in screen.rxvt (Debian #478094) -TD
+ + modify internal interfaces to reduce wgetch()'s dependency on the
+ global SP.
+ + simplify some loops with macros each_screen(), each_window() and
+ each_ripoff().
+
+20080426
+ + continue modifying test/ditto.c toward making it demonstrate
+ multithreaded use_screen(), using fifos to pass data between screens.
+ + fix typo in form.3x (report by Mike Gran).
+
+20080419
+ + add screen.rxvt terminfo entry -TD
+ + modify tic -f option to format spaces as \s to prevent them from
+ being lost when that is read back in unformatted strings.
+ + improve test/ditto.c, using a "talk"-style layout.
+