0.4
- renamed package from gtk to gtkDevice
- configure script modified to use pkg-config (when available)
  now exits abnormally if it cannot find pkg-config or gtk-config
- asGTKdevice requres() RGtk
- man page for gtk corrected to describe new behaviour
- loadGTK renamed to loadGTKdevice
- Formatting changes
- Removal of obsolete ptr_GTKDeviceDriver from loadGTK.c

0.3 
- Man pages included
- R_gtk_setEventHandler called automatically in .First.lib
