+20170304
+ + improve terminfo manual description of terminfo syntax.
+ + clarify the use of wint_t vs wchar_t in curs_get_wstr.3x
+ + improve description of endwin() in manual.
+ + modify setcchar() and getcchar() to treat negative color-pair as an
+ error.
+ + fix a typo in include/hashed_db.h (Andre Sa).
+
+20170225
+ + fixes for CF_CC_ENV_FLAGS (report by Ross Burton).
+
+20170218
+ + fix several formatting issues with manual pages.
+ + correct read of terminfo entry in which all strings are absent or
+ explicitly cancelled. Before this fix, the result was that all were
+ treated as only absent.
+ + modify infocmp to suppress mixture of absent/cancelled capabilities
+ that would only show as "NULL, NULL", unless the -q option is used,
+ e.g., to show "-, @" or "@, -".
+
+20170212
+ + build-fixes for PGI compilers (report by Adam J. Stewart)
+ + accept whitespace in sed expression for generating expanded.c
+ + modify configure check that g++ compiler warnings are not used.
+ + add configure check for -fPIC option needed for shared libraries.
+ + let configure --disable-ext-funcs override the default for the
+ --enable-sp-funcs option.
+ + mark some structs in form/menu/panel libraries as potentially opaque
+ without modifying API/ABI.
+ + add configure option --enable-opaque-curses for ncurses library and
+ similar options for the other libraries.
+
+20170204
+ + trim newlines, tabs and escaped newlines from terminfo "paths" passed
+ to db-iterator.
+ + ignore zero-length files in db-iterator; these are useful for
+ instance to suppress "$HOME/.terminfo" when not wanted.
+ + amended "b64:" encoder to work with the terminfo reader.
+ + modify terminfo reader to accept "b64:" format using RFC-3548 in
+ as well as RFC-4648 url/filename-safe format.
+ + modify terminfo reader to accept "hex:" format as generated by
+ "infocmp -0qQ1" (cf: 20150905).
+ + adjust authors comment to reflect drop below 1% for SV.
+
+20170128
+ + minor comment-fixes to help automate links to bug-urls -TD
+ + add dvtm, dvtm-256color -TD
+ + add settings corresponding to xterm-keys option to tmux entry to
+ reflect upcoming change to make that option "on" by default
+ (patch by Nicholas Marriott).
+ + uncancel Ms in tmux entry (Harry Gindi, Nicholas Marriott).
+ + add dumb-emacs-ansi -TD
+
+20170121
+ + improve discussion of early history of tput program.
+ + incorporate A_COLOR mask into COLOR_PAIR(), in case user application
+ provides an out-of-range pair number (report by Elijah Stone).
+ + clarify description in tput manual page regarding support for
+ termcap names (prompted by FreeBSD #214709).
+ + remove a restriction in tput's support for termcap names which
+ omitted capabilities normally not shown in termcap translations
+ (cf: 990123).
+ + modify configure script for clang as used on FreeBSD, to work around
+ clang's differences in exit codes vs gcc.
+
+20170114
+ + improve discussion of early history of tset/reset programs.
+ + clarify in manual pages that the optional verbose option level is
+ available only when ncurses is configured for tracing.
+ + amend change from 20161231 to avoid writing traces to the standard
+ error after initializing the trace feature using the environment
+ variable.
+