Remove unneeded method
updated.
Implement isEditable() method.
Move methods to ICDIVariableObject.
updated
doc
Fixes for 'Variable' and 'VariableObject'.
Uncommented the 'sizeof' method of 'ICDIVariableObject'.
Added the implementation of the 'getType' and 'getTypeName' methods of the 'CVaraible:ErrorVariable' class.