Changes Introduced in Version 2.0

Routines ARD_PLOT has been added to allow border of an ARD description to be drawn on a graphics device.
Routines ARD_WCS and ARD_PTWCS have been added to support the use of WCS within ARD description.
The WCS and COFRAME statements have been introduced.
The COEFFS, STRETCH, OFFSET, SCALE and TWIST statements have been deprecated in favour of the new WCS and COFRAME statements.