Add test for passing float values for radius
Add test for passing float values for radius

neuroidss/nupic,subutai/nupic,neuroidss/nupic,subutai/nupic,rcrowder/nupic,lscheinkman/nupic,numenta/nupic,marionleborgne/nupic,vitaly-krugl/nupic,rhyolight/nupic,scottpurdy/nupic,lscheinkman/nupic,vitaly-krugl/nupic,numenta/nupic,ywcui1990/nupic,alfonsokim/nupic,rcrowder/nupic,rhyolight/nupic,vitaly-krugl/nupic,ywcui1990/nupic,alfonsokim/nupic,scottpurdy/nupic,pulinagrawal/nupic,lscheinkman/nupic,pulinagrawal/nupic,rcrowder/nupic,marionleborgne/nupic,ywcui1990/nupic,subutai/nupic,marionleborgne/nupic,alfonsokim/nupic,neuroidss/nupic,rhyolight/nupic,numenta/nupic,scottpurdy/nupic,pulinagrawal/nupic