chore(package): update eslint to version 3.9.0
chore(package): update eslint to version 3.9.0

https://greenkeeper.io/
kalbermattenm/ngeo,adube/ngeo,camptocamp/ngeo,Jenselme/ngeo,Jenselme/ngeo,kalbermattenm/ngeo,camptocamp/ngeo,Jenselme/ngeo,ger-benjamin/ngeo,camptocamp/ngeo,camptocamp/ngeo,kalbermattenm/ngeo,ger-benjamin/ngeo,adube/ngeo,adube/ngeo,Jenselme/ngeo,camptocamp/ngeo,adube/ngeo,ger-benjamin/ngeo