added NumericTraits<T>::epsilon() for floating point types
added NumericTraits<T>::epsilon() for floating point types

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