Issue #31 no need to be able to instantiate this guy
Issue #29 We don't need this configuration type
Issue #34 Added initial EventListener API, as well as introducing CacheRuntimeConfiguration
Issue #34 Added JavaDoc and cleaned things up
Issue #34 Added Factory and configuration for listeners
Merge pull request #104 from alexsnaps/issue-34

Issue #34 Introduction of CacheEventListener API & config
 #47 get rid of containsKeys()
 #47 change API to use Map.Entry instead of Cache.Entry
 #47 trivial implementation of bulk ops
 #47 implementation of bulk ops with readers/writers + basic tests
 #47 better test coverage + bug fixes