chore(package): update eslint to version 3.13.1
chore(package): update eslint to version 3.13.1

https://greenkeeper.io/
trentmillar/keystone,andrewlinfoot/keystone,Pop-Code/keystone,ratecity/keystone,ONode/keystone,vokal/keystone,frontyard/keystone,benkroeger/keystone,andrewlinfoot/keystone,trentmillar/keystone,vokal/keystone,matthewstyers/keystone,andrewlinfoot/keystone,danielmahon/keystone,matthewstyers/keystone,trentmillar/keystone,frontyard/keystone,benkroeger/keystone,rafmsou/keystone,rafmsou/keystone,naustudio/keystone,frontyard/keystone,Pop-Code/keystone,ONode/keystone,concoursbyappointment/keystoneRedux,naustudio/keystone,matthewstyers/keystone,danielmahon/keystone,concoursbyappointment/keystoneRedux,danielmahon/keystone,dryna/keystone-twoje-urodziny,ratecity/keystone,vokal/keystone,dryna/keystone-twoje-urodziny,benkroeger/keystone,naustudio/keystone