Merge pull request #7 from wikipathways/dev

Dev
Create gh-pages branch via GitHub
Merge pull request #8 from wikipathways/dev

Dev
cleaning up test/dev comparison page
new architecture for test/dev comparison page coming nicely
new architecture for test/dev comparison page coming nicely
starting to work on edges in new architecture
path finder for elbows is half-working
tried using smoothen
elbows appear to be working
elbows OK. curves nowhere close.
elbows working
elbows appear to be working well. curves working so-so
trying to make pathData callback work
callback is messy but working
image that shows up during loading is enabled
png loading image working... next need to address path finder
callback problem somewhere in path finder
pathfinder not avoiding blocking elements
more changes to ux