added fixed_point_cast where necessary added intSquareRootTest()
added fixed_point_cast where necessary
added intSquareRootTest()

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