Cleaned up the tests

Removed copy paste methods
Fixed some typo's
Replaced system.out by logger calls
Improved exception handling
More test cleanup
Merge pull request #250 from hazelcast/cleanup/tests

Cleanup/tests
testing
testing
testing
testing
testing
testing
testing
testing
testing
testing
Merge pull request #252 from Danny-Hazelcast/cleanup

Cleanup, rename, todos
JCache WIP
Lots more work on ICache tests
Merge branch 'jcache-wip' of github.com:hazelcast/hazelcast-stabilizer into jcache-wip