Merge pull request #26 from wikipathways/gh-pages

latest
datanode pathway rendering now
Merge pull request #27 from wikipathways/gh-pages

update
remove default style values so that css classes can work
update css class name for symbols
Merge pull request #28 from wikipathways/gh-pages

latest
removed unneeded files
changed class names based on latest plan (css selectors)
Merge branch 'gh-pages' of https://github.com/khanspers/pathvisio.js into gh-pages
continuing removal of default in-line styles
added some details for shape library and for rendering
added placeholder for oval-double
moved ports under nodes
now groups have ports, but I think they need to be checked for accuracy
cellular component was searching attributes for org.pathvisioJS..., not org.pathvisio...
added back CellularComponent to class attribute
update documentation for shape-library
cleaned up unneeded console.logs
updated group to groupNode
updated group to groupNode