DATAREDIS-359 -  Fix redis javadoc generation.
DATAREDIS-356 - Check NonTransientDataAccessException for NOSCRIPT error.

We now check for a NonTransientDataAccessException instead of just an UncategorizedDataAccessException to conver all relevant exception types.
Corrected typo in method name. Added infrastructure for driver specific DefaultScriptExecutorTests.
Removed usage of RelaxedJunit4ClassRuner and using MinimumRedisRule
instead.
Removed obsolete test context configuration for ScriptExecutorTests.

Original pull request: #115.