ISPN-2913 putForExternalRead leaves locks
ISPN-3357 Fix the OutdatedTopologyException check during remote invocation

I made some mistakes when rebasing from 5.2.x to master.
ISPN-755 Build JavaDocs from scala sources too
ISPN-3359 Add JavaDoc 7 stylesheet to fix documentation appearance
ISPN-3435 Enable tests for RemoteCache.getBulk() and keySet()
ISPN-3442 fix and tests added for Query API DSL