chore(package): update eslint to version 3.6.1
chore(package): update eslint to version 3.6.1

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