refactored log2i()
refactored log2i()

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