added radial symmetry test
added radial symmetry test

stuarteberg/vigra,timoMa/vigra,psteinb/vigra,hmeine/vigra,DaveRichmond-/vigra,cha007/vigra,cha007/vigra,DaveRichmond-/vigra,martinsch/vigra,xiwei-zhang/vigra,cha007/vigra,capturePointer/vigra,kod3r/vigra,ThomasWalter/vigra,cbecker/vigra,DaveRichmond-/vigra,martinsch/vigra,funkey/vigra,DaveRichmond-/vigra,timoMa/vigra,capturePointer/vigra,hmeine/vigra,mmuellner/vigra,xiwei-zhang/vigra,ThomasWalter/vigra,timoMa/vigra,kod3r/vigra,mmuellner/vigra,dstoe/vigra,DaveRichmond-/vigra,martinsch/vigra,dagophil/vigra,psteinb/vigra,dagophil/vigra,funkey/vigra,dagophil/vigra,ThomasWalter/vigra,ThomasWalter/vigra,timoMa/vigra,cbecker/vigra,ThomasWalter/vigra,ThomasWalter/vigra,dstoe/vigra,dstoe/vigra,kod3r/vigra,xiwei-zhang/vigra,cha007/vigra,DaveRichmond-/vigra,funkey/vigra,kod3r/vigra,dstoe/vigra,martinsch/vigra,xiwei-zhang/vigra,dstoe/vigra,timoMa/vigra,mmuellner/vigra,xiwei-zhang/vigra,kod3r/vigra,dagophil/vigra,hmeine/vigra,psteinb/vigra,cha007/vigra,capturePointer/vigra,DaveRichmond-/vigra,cbecker/vigra,psteinb/vigra,kod3r/vigra,capturePointer/vigra,timoMa/vigra,capturePointer/vigra,mmuellner/vigra,psteinb/vigra,martinsch/vigra,cbecker/vigra,stuarteberg/vigra,cbecker/vigra,kod3r/vigra,dagophil/vigra,stuarteberg/vigra,dagophil/vigra,psteinb/vigra,stuarteberg/vigra,hmeine/vigra,capturePointer/vigra,xiwei-zhang/vigra,hmeine/vigra,funkey/vigra,stuarteberg/vigra,stuarteberg/vigra,xiwei-zhang/vigra,psteinb/vigra,funkey/vigra,funkey/vigra,mmuellner/vigra,cbecker/vigra,dstoe/vigra,dstoe/vigra,dagophil/vigra,martinsch/vigra,cha007/vigra,cha007/vigra,mmuellner/vigra,hmeine/vigra,mmuellner/vigra,capturePointer/vigra,stuarteberg/vigra,timoMa/vigra,hmeine/vigra,ThomasWalter/vigra,funkey/vigra