unloading prototype
clean debug print
update MGraph impl classes for SR handling
fix single reference setting in MEdge

reflection package tests are ok for the new implementation.
fix load errors after OME
Templates refactoring.
Templates refactoring.
Added IntelliJ files to git ignore
removed generated files
more refactorings
merged changelog-refactoring branch
more templates
merged classes from changelog-refactoring branch
Merge branch 'tests' of https://github.com/neo4emf/Neo4EMF into tests

Conflicts:
	.gitignore
	fr.inria.atlanmod.neo4emf.codegen/templates/Header.javajetinc
	fr.inria.atlanmod.neo4emf/src/main/java/fr/inria/atlanmod/neo4emf/drivers/impl/Serializer.java