chore(package): update eslint to version 2.5.3
chore(package): update eslint to version 2.5.3

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