KineticGWT enhancements and fixes.
Added various example implementations of Jade, Mailing and JPA database handling.
KineticGWT enhancements and fixes.
Major editor enhancements and fixes:

* Plugin system introduced for nice code separation, development and
modifiability.
* Added support for manually connecting boxes - using ALT+click.
* Added support for dragging edges. Use the square marks.
* New features include undo/redo functionality.