changed NormType and norm() according to new SquareRootTraits
changed NormType and norm() according to new SquareRootTraits

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