Added copyright notice to desktopsharing.py

darcs-hash:20090413134747-b22ec-e393634019816ad2c57386dfecdb430578e5bd4f
Chnaged license to LGPL in setup.py

darcs-hash:20090413134928-b22ec-7776d609ec1afabbc76ff12615f0baa1661878a3