use hibernate extension to lookup hibernate service
remove occurences of org.hibernate.type.CollectionType
use hibernate 3.5 as default pref in the tests
properly initialize hibernate version in constructor
remove occurences of org.hibernate.type.PrimitiveType
remove occurences of org.hibernate.type.KeyValue
remove occurences of org.hibernate.type.CollectionType
remove occurrences of org.hibernate.FetchMode