Issue #1815894: fix up some colour issues. Update hex values in colours.css. Add recolourable page top border.

Issue #1789206: Add superfish integration. Remove main menu and secondary menu features, which will be replaced by menu blocks placed in the menu bar region.

Initial draft of theme based on skeletontheme by Simple Themes as originally adapted to Drupal by Not Just Themes. This rewrite is an adaptivetheme subtheme.