ISPN-4696 SuspectException kills operation on ClusterRegistryImpl

* Added retry for ClusterRegistry operations
Update the distribution location in the release script
ISPN-4808 Release script doesn't work with new distribution
Fix whitespace before package declaration for new files.
ISPN-4807 NPE under high load when using async metadata writes for the Lucene Directory
ISPN-4807 Improve PerformanceCompareStressTest to better model the scenarious we're mostly interested in

Marked as ISPN-4807 as the new configuration of the test serves as stress-test to identify the NPE
ISPN-4544 BaseWordCountMapReduceTest#testCombinerForDistributedReductionWithException doesn't actually test reduce exception
ISPN-4677 Map/Reduce job fails with the wrong explanation on underlying TimeoutException
ISPN-4643 Make sure EntryIterator doesn't return expired entries
ISPN-4821 RHQ operation 'Upload Proto Schemas' no longer works due to changes introduced by ISPN-4357
ISPN-4708 Make DirectoryImplementor#deleteFile apply changes asynchronously
ISPN-4544 BaseWordCountMapReduceTest#testCombinerForDistributedReductionWithException doesn't actually test reduce exception

Fix test failure DistributedTwoNodesMapReduceTest.testCombinerForDistributedReductionWithException
Allow creation of Infinispan caches as OSGI managed service
ISPN-4818 Allow creation of Infinispan caches as OSGi managed service

Add checkstyle plugin and correspoding clean-ups.
ISPN-4818 Allow creation of Infinispan caches as OSGi managed service

Add integration tests some fixes and clean-up.
Fix documentation .adoc file
[ISPN-4645] Many XSD default values do not match the defaults from the
corresponding configuration builder

https://issues.jboss.org/browse/ISPN-4645

Updated *ConfigurationBuilder, *CacheResource, and XSD files to have the
correct default values
Modified test case code that verifies the default value for L1
configuration
ISPN-4830 Inconsistent naming for the HotRod client Karaf features

Rename them to 'infinispan-client-hotrod' and 'infinispan-client-hotrod-with-query' and deprecate the old ones.
ISPN-4829 OsgiClassLoader.getInstance() is not thread-safe
ISPN-4832 Compose the classpath for the rhq-plugin.xml generator from all the needed path elements