Merge pull request #2 from wikipathways/master

update ap:master with latest work and builds from wp:master
Merge pull request #3 from wikipathways/master

fixing typo - markerStartName should be markerEndName
fix t-bar and mim-inhibition
update all markers and refX/Y specs
Merge pull request #76 from AlexanderPico/master

update all markers and refX/Y specs