+20120512
+ + corrected 'op' for bterm (report by Samuel Thibault) -TD
+ + modify test/background.c to demonstrate a background character
+ holding a colored ACS_HLINE. The behavior differs from SVr4 due to
+ the thick- and double-line extension (cf: 20091003).
+ + modify handling of acs characters in PutAttrChar to avoid mapping an
+ unmapped character to a space with A_ALTCHARSET set.
+ + rewrite vt520 entry based on vt420 -TD
+
+20120505
+ + remove p6 (bold) from opus3n1+ for consistency -TD
+ + remove acs stuff from env230 per clues in Ingres termcap -TD
+ + modify env230 sgr/sgr0 to match other capabilities -TD
+ + modify smacs/rmacs in bq300-8 to match sgr/sgr0 -TD
+ + make sgr for dku7202 agree with other caps -TD
+ + make sgr for ibmpc agree with other caps -TD
+ + make sgr for tek4107 agree with other caps -TD
+ + make sgr for ndr9500 agree with other caps -TD
+ + make sgr for sco-ansi agree with other caps -TD
+ + make sgr for d410 agree with other caps -TD
+ + make sgr for d210 agree with other caps -TD
+ + make sgr for d470c, d470c-7b agree with other caps -TD
+ + remove redundant AC_DEFINE for NDEBUG versus Makefile definition.
+ + fix a back-link in _nc_delink_entry(), which is needed if ncurses is
+ configured with --enable-termcap and --disable-getcap.
+
+20120428
+ + fix some inconsistencies between vt320/vt420, e.g., cnorm/civis -TD
+ + add eslok flag to dec+sl -TD
+ + dec+sl applies to vt320 and up -TD
+ + drop wsl width from xterm+sl -TD
+ + reuse xterm+sl in putty and nsca-m -TD
+ + add ansi+tabs to vt520 -TD
+ + add ansi+enq to vt220-vt520 -TD
+ + fix a compiler warning in example in ncurses-intro.doc (Paul Waring).
+ + added paragraph in keyname manpage telling how extended capabilities
+ are interpreted as key definitions.
+ + modify tic's check of conflicting key definitions to include extended
+ capability strings in addition to the existing check on predefined
+ keys.
+
+20120421
+ + improve cleanup of temporary files in tic using atexit().
+ + add msgr to vt420, similar DEC vtXXX entries -TD
+ + add several missing vt420 capabilities from vt220 -TD
+ + factor out ansi+pp from several entries -TD
+ + change xterm+sl and xterm+sl-twm to include only the status-line
+ capabilities and not "use=xterm", making them more generally useful
+ as building-blocks -TD
+ + add dec+sl building block, as example -TD
+
+20120414
+ + add XT to some terminfo entries to improve usefulness for other
+ applications than screen, which would like to pretend that xterm's
+ title is a status-line. -TD
+ + change use-clauses in ansi-mtabs, hp2626, and hp2622 based on review
+ of ordering and overrides -TD
+ + add consistency check in tic for screen's "XT" capability.
+ + add section in terminfo.src summarizing the user-defined capabilities
+ used in that file -TD
+