Use hibernate 3.6.x in hibernate plugins.

We are going to make our plugins to use hibernate 3.6, but there are some changes required:
1. Type/NullableType hierarchy was changed, we should not use NullableType any more ( it is deprecated ), but should use AbstractSingleColumnStandardBasicType. The changes are in quiery parameters area
2. To all constructors of values classes ( SimpleValue/Array/OneToMany/... ) added Mapping parameter. We use the classes in internal creation of Configuration object before passing it to exporters ( for example when we generate hbm files based on java files )