+20170415
+ + modify several test programs to use new popup_msgs, adapted from
+ help-screen used in test/edit_field.c
+ + drop two symbols obsoleted in 2004: _nc_check_termtype, and
+ _nc_resolve_uses
+ + fix some old copyright dates (cf: 20031025).
+ + build-fixes for test/savescreen.c to work with AIX and HPUX.
+ + minor fix to configure script, adding a backslash/continuation.
+ + extend TERMINAL structure for ABI 6 to store numbers internally as
+ integers rather than short, by adding new data for this purpose.
+ + more fixes for minor memory-leaks in test-programs.
+