map replication operation was not removing elements from the backup and this leads to read of stale data if read backup is enabled
assertTrueEventually check added to rarely failing test testEventOperationCount
Added contribution info to Preface
Revision History for 3.5 Snapshot created/updated.
moved testMapLoaderLoadUpdatingIndex to MapLoaderTest class and refactored
removed load check from recordstore.reset() and improved testing
Merge pull request #4352 from eminn/fix/map-remove-stale

map replication operation was not removing elements from the backup and ...
Review of "Starting the Cluster" section.
Improved "Starting the Cluster" section.
Added the "Creating Cluster Groups" section to..

Hazelcast Clusters chapter.
Authored the intro paragraphs for Hazelcast Clu...

stars chapter.
Revision History updated by adding the Hazelcast..

Cluster chapter related modifications.
added neater toString method, useful for reading exceptions and debugging.
Update pom.xml

adding txt filtering
initial prototype for cluster quorum
added more unit tests and marked most of the operations with either ReadOperation or MutatingOperation marker interfaces
More tests added and some refactorings are made
delay initial kick in of split-brain handler to stay in partitioned state
tests realted to entry process are added
quorum service is created and added tests for transactional map