Improving SQLs
Removing unused factories
Removing component factory interfaces
Refactoring SourceControl
Unifying Source API
Adding ElementType model
Refactoring ElementControl
Removing unused NewElementControl
Privileges checks, new element type select on default
Source-related fixes.
Refactoring relation controls
RelationSource using RelationType
Refactoring diagram presenter
DiagramSource is now using DiagramType
Cleaning up ClassModule
Configuration clean-up
Adding control interfaces.
Adding CommandModels instead Parsers and Interpreters
Association is now DAO, too
Adding class commands