Updated Portfile for 'lang/slime' attached to ticket 14136

[Mark Evenson]

As maintainer of the 'lang/slime' port I have created an essentially 
reworked Portfile attached to ticket [14136][1] which:

* updates the SLIME sources to CVS HEAD of 20080203, which reflects the 
major refactoring into a 'contrib' subdirectory that occured in the last 
couple of months

* now has an 'app' variant that will install with the 'emacs-app' port 
(thanks to Jamison Hope for the initial patch)

* removed the obsolescent 'devel' variant ('emacs-devel' is no longer in 
the MacPorts trunk

* updated style to comply with what is outlined in 
http://guide.macports.org/#development.practices (no tabs, 4 column 
indents, Emacs/vim initial modeline)

* rewrote the sample '.emacs' initialization code message to conform 
with the new style enabling SLIME to more easily serve as the frontend 
to multiple Lisp (or with varying commandline options)


[1]: http://trac.macosforge.org/projects/macports/ticket/14136

Could someone please commit the Portfile?

Mark <evenson at panix.com>

(who is a maintainer, but doesn't have commit rights, even though he is 
subscribed to the very chatty macports-change list, and is marked as the 
maintainer of 'lang/slime' and 'lang/nxml-mode', and wouldn't mind 
terribly if somebody wanted to change that situation).