User is now prompted for login after showing the main stage, so the ugly default icon is not visible
Graph's Object list window now closes if getting objects from server fails
Vertex colors are now determined by object types. Edge arrows now point to objects with odd positive relation order
Dialogs for main window are now lightweight
Client now removes \r from reports
see #46
Added spinner to graph view to change distance from center node
Fixed NPEs when no object is actually selected when adding object to relation. This however needs further discussion.
Added context menus to display graph for objects
Fixed unability to select object from db list by mouse click when assigning objects to entities
Added pagination and filtering for object list.
Object list no longer remembers previous filter
When assigning objects to entities, hint for entity tells its type apart from assigned object
Merge branch 'client'