Hi,

I wanted to propose a command for project.el to kill all opened buffers
in a project, called when one finishes working on some specific
code-base. I gave it the name "project-clean-up", but maybe it should be
renamed? I have been using it in my local emacs branch for about a week,
and have found it to be useful.

One issue I ran into is that a buffer might be falsely associated with a
project, such as *Help*. That's why I added an user option
project-dont-clean-regexps to contain a list of regular expression of
what buffer names to spare. The reason I couldn't just stick to checking
the value of buffer-file-name is that Dired, VC, etc. buffers don't get
recognized. There might be a better way to do this, but I'm not sure if
it's worth the effort.

And it might be worth considering to add a prompt, to ask the user if
they actually want to kill all the buffers.

-- 
	Philip K.