A few new operators and bug fixes as usual:

Added 'discriminant', 'is_strong_pseudoprime' and 'compare_lists' operators.

Fixed a few mistakes in the help examples.

The unit tests no longer use cached values for functions (but it still uses the cache for functions that access the Internet: the OEIS functions and the location functions).

Added 'describe', 'is_smith_number', 'is_base_k_smith_number', 'is_order_k_smith_number' operators.

Replaced the -R option with 'get_base_k_digits'. It should have been an operator all along.

The rpnChilada wheel works on Linux now.