Imports of package events

PathSynopsis
github.com/docker/docker/pkg/pubsub
github.com/docker/docker/reference
github.com/docker/engine-api/types/events
github.com/docker/engine-api/types/filtersPackage filters provides helper function to parse and handle command line filter, used for example in docker ps or docker images commands.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.
timePackage time provides functionality for measuring and displaying time.