Tree.getColumnCount() method implemented (tests included). Also column manipulation during tree tests updated a bit.
Missing API javadocs for Tree#getColumnCount() method
Implemented method getChildren() in ProjectItem
Implemented Navigator View #206
Recorder plugin added
ensure that focus is always set when widget is instantiated
Removed Logger from WaitUntil which was overriding parent's Logger (fixes #418)
Initial implementation of Keyboard using Display.post(Event e)