added missing hiracical_clustering.hxx
added missing hiracical_clustering.hxx

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