Add classifiers to designate which versions of CherryPy are supported. _cpcompat indicates that CherryPy 2.3 is still supported (though _test_decorators doesn't run on 2.3).
Add classifiers to designate which versions of CherryPy are supported. _cpcompat indicates that CherryPy 2.3 is still supported (though _test_decorators doesn't run on 2.3).

--HG--
branch : cherrypy-3.2.x

cherrypy/cherrypy,cherrypy/cherrypy,cherrypy/cheroot,Safihre/cherrypy,Safihre/cherrypy