1.6 released

Use docJGenerator 0.20 to generate the wiki
Use MDIUtilities 0.9
Fix some cases when a NPE was thrown when trying the get the UI Properties of a widget in the Editor
Improve the management of the rootWindows and rootRenderers for layers (the maps were removed from the layers and put into the rendering bridges)
Fix some cases when rootWindows were positioned twice
Fix rhe activation order of the connectors in JavaFX
Remove a double-reference access for FocusLinks
Change the JavaFX implementation of the ActiveArea from a Rectangle to a Button
Fix cases where the Editor creates widgets with identical widget IDs when performing "GroupAs" several times on the same root
Fix a bug where the UACDS XML saved file would be incorrect in some cases when putting rhe same interfaces on different widget commands or notifications but on different graphical groups
Fix the TabbedPanelGroup widget always beginning to show the first tab at the beginning even if it is not the selected tab
Fix the TabbedPanelGroup widget always rendering all the tabs (even those which are not visible) at the beginning