Update datastore version.
Update cassandra version to 0.5
Handle Long class also for version property
Add fetchSize property so paging can be changed or switched off
Change max to fetchSize to properly switch off paging
Update version to 0.5, update Datastax driver and Spring Data Cassandra
dependency versions, the latter to a release version
Merge branch 'cassandra' of ssh://github.com/paralk/grails-data-mapping into cassandra