Model/Workflow: Separate class and instance title of workflow
Model/Workflow: Add interface for workflow model
Model/Workflow: Split model out of workflow manager
Model/Workflow: Add method beforeCommit() and afterCommit()
Model/Workflow: Add method getModelClass() to workflow manager
Model/Workflow: Remove usage of static property
Db: Generate rollback SQL in reverse order of commit
Model/Workflow: Fix comment of workflow view mode edit
Model/Workflow: Change key action to actions in nodes property
Model/Workflow: Set view title with workflow and instance info
Model/Workflow: Rename property $workflowClassname to $workflowClass
Model/Workflow: Make sure workflow manager will load a model instance
Model/Workflow: Only show workflow title when model title empty