Release 0.7.1

   Rewrote all classes and methods.
   
   Modelled classes after the motif widget hierachy.

   Wrote Design area, main window, Interface reader, Code generator.

   Created windows for Constraint, Resource and Callback editors.

Release 0.7.2

  Added core resources display and widget resource display for some
  widgets.

Release 0.7.3

  Added more widget resources, and help on each resource.
  Started with the ConstraintEditor, possible to display location
  of widgets in form. No manipulation of attachments yet.
  
Release 0.7.4
