introducing DiagramDesignerWidget.Mouse to handle mouse events on items, connections and background
refactor: tabs functionality in DiagramDesignerWidget
display delete button only if tabs are deletable
bugfix for paramters
filter out Registry.MetaSheets registry entry so can not mess up that registry value in the property editor
Merge branch 'develop-r'
enhanced debug information on server startup
Merge branch 'autorouter_port'
dump functionality have been added to REST API
Merge branch 'autorouter_port'
enhancing json format with possible GUID references - under implementation!!!
GUID representation in the JSON format
now the Json format of a single node or a subtree can contain 'GUID enhanced' reference objects
now to client have been enhanced with dumpNodeAsync and importNodeAsync functions
skeleton of the import function have been created
Merge branch 'autorouter_port'
add support to get the currently displayed node from the activepanel

IActivePanel.prototype.getNodeID
bugfix
support IActivePanel.prototype.getNodeID
implement project export button & dialog