Differences between $2.0\beta$ and $2.0$.

The 2.0 release includes several improvements to the front end as follows. We have made it easier to use the front end to create parameter files automatically. These can then be run from the command line (this might be convenient if you want to do lots of runs on a computing cluster). The results can later be fed back into the front end. We have also changed the layout of some menus. Plots can be saved in jpg format. The summary page is printable. We have added a new parameter PFROMPOPFLAGONLY, that allows the allele frequencies to be updated using only a subset of the individuals. Several minor bugs were removed.