- put internals into namespace detail - return 0 for watersheds, not -1
- put internals into namespace detail
- return 0 for watersheds, not -1

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