+20150307
+ + document limitations of getwin in manual page (prompted by discussion
+ with John S Urban).
+ + extend test/savescreen.c to demonstrate that color pair values
+ and graphic characters can be restored using getwin.
+
+20150228
+ + modify win_driver.c to eliminate the constructor, to make it more
+ usable in an application which may/may not need the console window
+ (report by Grady Martin).
+