* configure.in: more $pkglibdir -> $libexecdir fixing.
* doc/Makefile.am: add rules for generating ps and text versions of the ctlseqs
	docs.
* doc/reference/tmpl/vte.sgml: add snippet for "commit".
* python/python/vte.defs: update to add a binding for
	vte_terminal_fork_logged_command().
* src/buffer.h: add a warning comment that these are private interfaces.  Wrap
	declarations in G_BEGIN_DECLS/G_END_DECLS.
* src/caps.h: add macros for the SS2/SS3 sequences.
* src/marshal.list: add a marshaller for the "commit" signal.
* src/keymap.c, src/keymap.h: move the getting-more-convoluted keypress-handling
	code to a shell that parses tables of static info.
* src/pty.c: reset signal handlers before exec() (Red Hat #75341)
* src/vte.c: use the keymap for most non-printable keys.  Add a "commit" signal
	to allow an app to just use the terminal for displaying data and
	grabbing input.  Obey the application's desired meta-sends-escape
	setting.  Recognize HP function key mode.  Recognize and handle legacy
	XTerm function key mode.  Force a redraw if the child application tries
	to switch to 80/132 columns, even though we don't usually let them try.
	Don't try to send keystrokes to the child pty when there is no child
	pty.  Don't convert final whitespace to newlines when copying text
	(Red Hat #74611).  Properly distinguish cursor key mode and keypad key
	mode, obey application mode for cursor keys,
* python/cat.py: test program for running without a command.
* termcaps/xterm: change the definitions for ku/kd/kl/kr to match XTerm in
	normal cursor mode instead of application cursor mode.