Query: contains condition
Moved generally usable converters into org.radargun.utils
Simple stage allowing to execute custom command on the slaves
Added stress-test.seed to fix initial data in the cache
* this is useful when we want to use stress-test just to preload data for query
JGroups dumper can be started before cache manager
Moved JPA to subdirectory specific/
Moved generators to core
* use reflection to get the class in the same way as JPA generators
* Changed Queryable.list() -> Queryable.values()
* the check for identical results of query from all slaves is off by default
Minor fixes
Implemented querying functionality for Coherence
Added plugin for Coherence 12.x
Add getTotalSize() for Infinispan 5.2 and greater

Use a distributed executor to get the local cache size of each node,
then determine the total size based on the clustering mode and cluster
size.

Note: The accuracy of results with passivation enabled on Infinispan
versions less than 6 is not guaranteed.