Load the tasks' descriptions always
Added handling of the default server event. From now all the events which are
not processed explicitly on the FE mark the board as dirty warning the user to
refresh the browser.
Changed the fixed size workflows to be in pixels instead of in tasks
coloring of the workflowitems to red if they overrun WIP limits (just the beginning, does not work yet)
Continued the work on the visualizing of the wip overrun - now it is working but needs some cleanup