Shorten license description.

Author: pavoljuhas

setup.py

@@ -105,7 +105,7 @@ def getversioncfg():
         maintainer = 'Pavol Juhas',
         maintainer_email = '[email protected]',
         description = "Bindings of ObjCryst++ into python",
-        license = "BSD-style license, see LICENSE.txt",
+        license = "BSD-style license",
         url = "https://github.com/diffpy/pyobjcryst",
 
         # What we're installing