Added Automatic Generation of metaAttributes/metaRelations at write
Adapted tests to the new side effects of write operations (some
cardinalities changes)
Merge branch 'master' of
https://github.com/genericsystem/genericsystem2014.git

Conflicts:
	gs-kernel/src/main/java/org/genericsystem/kernel/services/BindingService.java
replaced method parameter types T ... with List<T>.
updated some tests.
updated cache::GenericService with an override of setMetaAttribute.