Normalize some other markup.

\itemjoin,
\kwindex:  Revived definitions to support the Python Reference Manual.

This is handy for comparing plain-text documentation files,
since it displays intra-line differences.

and the "key" keyword parameter was used to invoke .go(), use the directory
of the selected file as the stored directory to return to when the same key
is used again.  This is useful since the user may well entry at least part
of the path in the filename box instead of doing a lot of clicking around in
the listboxes.

contain multiple words, all of which may have to be joined with the
path of the extension directory.
(Sjoerd)

reported to me by Piers Lauder <piers@cs.su.oz.au>.

as soon as I change things even just a little bit? :-)  Even works
when accessing a password-protected page through the proxy.  Prompted
by complaints from, and correct operation verified by, Nigel O'Brian.

servers support LOGIN but don't advertise it.  If it's not supported
the protocol will respond NO.  Approved by Piers Lauder.

to work reliably (at least I wouldn't know how).

wm_title(), etc.  The old names (title() etc.) are still defined as
aliases.

This brings all methods up to use the same naming convention: whether
the Tcl syntax is

   .window.path.name command subcommand [options]

or

   command subcommand .window.path.name [optins]

the Python equivalent is always

   windowobject.command_subcommand(options)

calling self.tk.getint() and self.tk.getdouble(), call the globals
getint() and getdouble(), which in turn are just names for the Python
builtins int() and double().  (Making them globals actually save a
dict lookup compared to using the built-in.)  The corresponding
methods of class Misc have been changed similarly.  (Note that
getboolean() hasn't been changed because there's no Python
equivalent.)

The use of int() and float() has another advantage: if/when Tcl calls
can actually return Tcl objects with other types than string, use of
int() and float() is essential.

not needed to say apply(self.tk.call, t); self.tk.call(t) has the same
effect.  This cuts down tremendously on the number of apply() calls
made.  No measurable effect, but at the very least it saves the lookup
of apply() in the globals!

repeats the I/O for the failed import on each interpreter creation.

symlink to a symlink can work.
(Jack)