added spline 4 splecialization
added spline 4 splecialization

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