Some tree nodes were duplicated when clicking on the next error / warning / info
When two levels of tree nodes are used for the same model element
  - consider sub elements to only color the tree nodes that lead to Error/Warning/Info with the appropriate color
  - display errors/warning/info on the enclosing tree node
Use double buffer to avoid flickering of the tree view
Version 1.0.14
Management of Radio Communication reviewed
Merge branch 'Upstream/master'