chore(package): update zone.js to version 0.7.6 (#447)
chore(package): update zone.js to version 0.7.6 (#447)

https://greenkeeper.io/
c1rno/angelhack_frontend_prototype,c1rno/angelhack_frontend_prototype,mseemann/angular2-mdl,mseemann/angular2-mdl,c1rno/angelhack_frontend_prototype,mseemann/angular2-mdl,mseemann/angular2-mdl,c1rno/angelhack_frontend_prototype