Changed, Classic modes: model wireframe is now rendered using Highlight color...

Changed, Classic modes: model wireframe is now rendered using Highlight color when corresponding thing is highlighted (and Select color when it's selected).
Sound Environment mode: added "Show nodes with warnings only" checkbox to the panel.
Sound Environment mode: somewhat increased sound environment update speed by updating the list after all sound environments are updated.
Sound Environment mode: the list now scrolls to show highlighted sound environment.
Sound Environment mode: sound environments can now be (de)selected. Selecting a sound environment stops highlighting sound environments / scrolling the list when moving the mouse.