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-4827 Expose the cluster/cache availability over JMX attributes/DMR
metrics
WIP