Added support for MongoDB find by ObjectID.
IDE webapp now upserts a user, for now.
Toolkit view is now initialized by presenter.
More toolkit items.
Hacked Vaadin D&D from Toolbox to Workspace.
Reverted some D&D logic, not ready yet.
Removed NotYetImplementedException so we can keep working.
FunctionDefinitions can now be saved to MongoDB..ish
Better tests for FunctionDefinition Record & Repository.
Added tests (failing) for expected FunctionDefinitionRepository insert/update behavior.