Graph#rebase
work towards using prototypes for entities
Working more-efficient parentWays
Working rebase
working parentRels
Fix difference
Merge takes an entities object, not graph
Don't re-add removed parentways, don't duplicate
Small parentWays, parentRelations perf improvements
Add tests for #replace #remove #rebase
Merge remote-tracking branch 'systemed/master' into graph-perf2
Fix graph.rebase()
Fix partial redraws
Merge pull request #565 from systemed/graph-perf2

graph performance