Added new classes.
Updated datatype names of some fields in these classes.
Renamed these classes.
Updated root type. Added application window title.
Removed unused css file.
Updated About menu entry.
Added TreeView.
Updated constructors.
Merge branch 'javafx' of https://github.com/PRECISE/ROSLab into javafx

Conflicts:
	src/roslab/model/electronics/Circuit.java
	src/roslab/model/general/Configuration.java
	src/roslab/model/software/ROSPort.java
	src/roslab/model/software/ROSTask.java
	src/roslab/model/ui/UILink.java