- Replaced the new implementation of openjava.ptree.Literal with the old implementation
	*	the new implementation used a singleton pattern for constants (null, 1, 0, etc)
		and this caused incorrect parent values

- Modified openjava.ptree.TypeName#getName()
	*	if getGenerics() is not null and not empty then it's value will be appended to the returned value

- Added openjava.ptree.NonLeaf#getGenerics()