chore(package): update mongoose to version 4.8.5
chore(package): update mongoose to version 4.8.5

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