licensing

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+This package is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License version 3, as
+published by the Free Software Foundation.
+
+The reason you don't have the usual "(at your option) any later
+version." option is that the file `src/freenect-server.c` contains
+code from the freenect project, which is dual-licensed under the GPL
+2.0, and the Apache License 2.0.  We can provide it under the GPL 3.0
+because the Apache License 2.0 is compatible with it.  We can't know
+if this is true of later versions of the GPL until they are written.
+All other files are licensed under the GPL 3.0 with the option of
+using later versions.  It is likely that you can use this under later
+versions of the GPL.
+
+freenect, as of the time I took code from it did NOT include a CONTRIB
+file.
+
+Unless you are getting the distribution from git, the full text of the
+GNU General public license should be included in the file
+`COPYING.GPL3`.