Added original gitk.
gitk: Replaced "green" with "#00FF00".

The definition of "green" has changed in Tk 8.6:

http://wiki.tcl.tk/21276
http://www.tcl.tk/cgi-bin/tct/tip/403

One could also use "lime" instead of "#00FF00" but that would break
downwards compatibility.
Added "getpw".
getpw: Don't fail if user or password starts with a dash.
getpw: Make dmenu pick up all arguments.
getpw: Sort entries.
getpw: Added a mode that simply shows the details.

I chose Xdialog because it's a rather simple tool. Plus, showing it in
an input box allows for easy copy-and-paste (both to "primary" and
"clipboard").
getpw: We do not need $site.
getpw: Better extraction of the user name.
getpw: Support for accounts without a user name.

If the user name is "_" (a single underscore), then do not type it via
xdotool.
getpw: Added --type-only-password.

Sometimes, it's required to only enter the password (e.g., when changing
a password, you often need to enter the old and the new ones).
Preliminary script to warn about outdated passwords.

As I have no outdated passwords yet, I have not tested this yet.

I use an fcrontab entry like this:

	&bootrun 0 0 * * 6 ~/bin/getpw_last_changes