package.json - add repository field, point to fork of estree-walker
package.json - add repository field, point to fork of estree-walker

tomalec/polyup,davidmaxwaterman/polyup,googlearchive/polyup,googlearchive/polyup,PolymerLabs/polyup,wienczny/polyup,tomalec/polyup,wienczny/polyup,PolymerLabs/polyup,wienczny/polyup,davidmaxwaterman/polyup,googlearchive/polyup,PolymerLabs/polyup,davidmaxwaterman/polyup,tomalec/polyup