custom LDiEdge with variable label; upsert replaced by label assignment; upper bound AnyRef for labels
source file was missing
LDiEdge.unapply replaced by label accessor
Merge branch 'master' of https://github.com/peter-empen/ScalaGraphMinimizer into peter-empen-master
Changed the l s to label s
Making the fold even more readable
Moving the mutable LDiEdge to the semiring package.
Renamed the custom LDiEdge to MLDiEdge
Cleaning up a few things