changed python cluster operator a tiny bit
changed python cluster operator a tiny bit

kod3r/vigra,capturePointer/vigra,stuarteberg/vigra,stuarteberg/vigra,capturePointer/vigra,cha007/vigra,ThomasWalter/vigra,cha007/vigra,dagophil/vigra,xiwei-zhang/vigra,ThomasWalter/vigra,funkey/vigra,stuarteberg/vigra,stuarteberg/vigra,mmuellner/vigra,dagophil/vigra,timoMa/vigra,ThomasWalter/vigra,stuarteberg/vigra,timoMa/vigra,xiwei-zhang/vigra,mmuellner/vigra,cha007/vigra,timoMa/vigra,funkey/vigra,timoMa/vigra,stuarteberg/vigra,xiwei-zhang/vigra,xiwei-zhang/vigra,funkey/vigra,dagophil/vigra,mmuellner/vigra,mmuellner/vigra,cha007/vigra,ThomasWalter/vigra,dstoe/vigra,ThomasWalter/vigra,capturePointer/vigra,dstoe/vigra,dagophil/vigra,funkey/vigra,timoMa/vigra,kod3r/vigra,timoMa/vigra,dagophil/vigra,capturePointer/vigra,capturePointer/vigra,dstoe/vigra,mmuellner/vigra,xiwei-zhang/vigra,funkey/vigra,mmuellner/vigra,mmuellner/vigra,kod3r/vigra,funkey/vigra,kod3r/vigra,ThomasWalter/vigra,cha007/vigra,capturePointer/vigra,stuarteberg/vigra,funkey/vigra,dstoe/vigra,kod3r/vigra,kod3r/vigra,dagophil/vigra,dstoe/vigra,dagophil/vigra,xiwei-zhang/vigra,cha007/vigra,capturePointer/vigra,timoMa/vigra,dstoe/vigra,xiwei-zhang/vigra,cha007/vigra,dstoe/vigra,kod3r/vigra,ThomasWalter/vigra