Genpak

Two new utilities were added. One of them adjusts codon usage of an ORF to
reflect an optimal codon usage of a group of genes, and the other one is a tool
for calculating the codon usage deviation from a population of genes. Some
minor bugs were also fixed.

This release fixes the broken gp_tm, the partly broken gp_primer, and other minor problems.

This release adds a program for predicting oligonucleotide stem-loop structures and dimeres.

Major bugfixes, code cleanups, and some new features.

Many bugs have been corrected, some utilities have been rewritten, and three new programs have been added.