Version of 2/9/99

• Pressure relaxation routine LJPSLATMIN added for potential 'LS'.
• Added NORESET flag so that particles are not put back in the minimum image cell.
• Added steepest ascent transition state search using a Page-McIver-type approach. Accessed with INR=8.
• New keyword AXTELL specifies that the Axilrod-Teller potential with coefficient Z^* is to be added to the potential specified by the atom type.
• Changed cgts.f so that EF/CG understands MODE and can follow modes other than the softest. Also allowed more CG steps in the tangent space when the EF step appears to have converged.
• Keyword 2D added. System is treated as fixed in the x-y plane. Not an efficient implementation, as derivatives for unwanted degrees of freedom are still calculated.
• New keyword DOUBLE adds a double-well potential as per J. Chem. Phys., 110, 6617, 1999. The energy and derivatives add to the potential specified by the atom type. Only atom type 'LS' (not binary) has the 1,2 interaction removed as well. At low density some atoms may not interact with any others and problems result due to additional zero eigenvalues. There is a true minimum for their density with a cutoff of 1.25.
• PARAMS variables renamed internally.