J.3.10 Release MD-1.3

Newly released option until February 1990.

$\bullet$ potential(5NEMO) has extra time parameter, relevant programs have been updated.

$\bullet$ hackcode3 is an experimental version which allows an extra external potential through the potential(5) format. It also has the option of keeping the first nrigid particles rigid, and more silly options are expected. It should be noted that hackcode2, an experimental toy, has never been released.

$\bullet$ The user interface getparam() now supports reading the value(s) of a keyword from a file using the key=@file construct.