Added more javadoc for WhoisRestService and WhoisMetadata
Removed unused RpslObjectUpdateDao from WhoisRestService
removed unnecessarily complex services /grs-search and /grs-lookup
removed unused code
Fix of some failing endtoend tests
Babystep refactoring of versionqueryexecutor. Fixes failing endtoend test.
fixed /lookup returning hierarchical hits
fixed changeddatevalidator
make sure search key is always sanitized before use