added tests for Gaussians
added tests for Gaussians

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