Merge pull request #81 from AlexanderPico/master

fixed wikipathways/pathvisiojs#80
anchors now displaying
Merge branch 'master' of https://github.com/wikipathways/pathvisiojs
minor change - moved data...anchor under data.gpml.node
Merge pull request #7 from wikipathways/master

update ap:master with latest work and builds from wp:master