Added output of main path in form of graphviz pngs
Added output of main path in form of graphviz pngs

bencabrera/wikiMainPath,bencabrera/wikiMainPath,bencabrera/wikiMainPath,bencabrera/wikiMainPath,bencabrera/wikiMainPath,bencabrera/wikiMainPath,bencabrera/wikiMainPath