Log Message:
Update dvtm to 0.7.
PR 46585 by maintainer Leonardo Taccari.

Pkgsrc changes:
 * Switched to <../..mk/curses.buildlink3.mk>: now dvtm also works with
   curses(3).
 * Reset maintainership to pkgsrc-users@NetBSD.org.

Changes:
 * on resize backfill text from the buffer if possible
 * fix for a segfault in resize code
 * support for the 8 basic highlighted colors
 * compilation fixes for BSD curses and pdcurses (however the
   latter doesn't actually work due to the select(2) driven event loop
   of dvtm)
 * some AIX fixes
 * graphmode fixes
 * fibonacci layout (not enabled by default)
 * dynamic color changes depending on the window title configurable in
   config.h
 * window borders are now drawn using the colors specified in config.h
 * rudimentary mouse support, that is mouse events will be passed to
   the underlying terminal application
 * relicense terminal emulation component from LGPL to ISC
 * various source code cleanups (code reviews and patches are always
   welcome)