better error messages, nicer param listing, --try for vigra-interactive-config
better error messages, nicer param listing, --try for vigra-interactive-config

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