Have layout use ranker attribute
Add timing instrumentation
Make network simplex algorithm work for multigraphs
Use strict in lib, remove stub note from layout
Add weighted cross counting algorithm
Extract simplify function
Minor restructuring to order function
Rework initOrder to better match Gansner paper
Add functions to get weights between nodes
Initial work on barycenter sort
Add weight to dummy edges
Initial hook up for barycenter into order phase
Consistent use of double-quotes in console
Add pan / zoom to console
Assign order bast on last best + end iter when no improvement
Fix bug in cross count algorithm