Restrictions in XSD
Print word count results per node
Use different random seeds on each node when generating data
Change key format and log messages
Enable building Infinispan 6

Add profiles to build Infinispan 5.2, 5.3, and 6.0 snapshots and LevelDB
cachestore
Small fix for StressTest.fixedKeys=false
Query Performance Tests - The word generation for the later search with queries is changed.
New background stressor logic
* checks if each operation's result can be seen from all nodes
* tests GET, PUT, REMOVE (both conditional and non-conditional), PUT_IF_ABSENT, REPLACE (conditional)
* theoretically we may miss some error but there should be no false positives (would be a bug in stressors)
* minor: apache.log4j -> apache.commons (as used in all the rest of framework)
Updated ISPN versions
Fix for cross-site tests: Using key generator