Relicense all files to MIT, so people can use this code as inspiration or even as a basis for development of any kind...

Original commit message from CVS:
Relicense all files to MIT, so people can use this code as inspiration or
even as a basis for development of any kind of plugins, not just free ones.
Same for applications, of course. Add LGPL and MIT copyright files for good
practice.

(For those unaware, MIT means "do anything you wish", similar to BSD w/o
advertising but without explicit no-endorsement clause.)