Update changelog

Ignore-this: 78967692a19570a409bd219d5c81a20a

darcs-hash:20100901074705-58252-c03bd8fc3517f094633516bcb2b940588ef64a44
Removed license note about itself

Ignore-this: 854378f8fd199b3bf3795df367c430ae

darcs-hash:20100901090623-58252-a9414d5ffd0a268fbc4dee1474be35489e10c97a