MyTextFieldListener: Initial commit.
MyView: Add Document Listener.
MyTreeRenderer: Update code and icons.
- Add new node icons
- Add new logic for setting node/folder icons.
MyTreeRenderer: Streamline code for setting node icons. 
Specifically the active 'orange' / inactive 'grey' icons.
MyController: Remove debug print statements.
MyTextFieldListener: Update to locate a match from the array.
Images: Add node icons.
MyTreeRenderer: Complete list of nodes.
MyTextField: Set text in CompletionTask.