+ remove wide-character checks from unctrl() (patch by Clemens Ladisch).
+ revise wadd_wch() and wecho_wchar() to eliminate dependency on
unctrl().
+ continue integrating "sp-funcs" by Juergen Pfeifer (incomplete).
+ continue integrating "sp-funcs" by Juergen Pfeifer (incomplete).
This change finishes merging for menu and panel libraries, does
part of the form library.
+ modify _nc_panelhook() data to account for a permanent memory leak.
+ fix memory leaks in test/demo_menus
+ fix most warnings from Klocwork tool (report by Larry Zhou).
+ modify configure script CF_XOPEN_SOURCE macro to add case for
"dragonfly" from xterm #236 changes.
+ modify configure script --with-hashed-db to let $LIBS override the
search for the db library (prompted by report by Samson Pierre).
