Meeting up

Discussed how to improve the model so, that choosiness could be a real choice for the population. Im still changing things on this.

Also decided that a choosiness value of 100 should count as 0 choosiness. This increases linearly up to 200 choosiness where the probability of being choosing in the mating stage is 1.

This change was implemented because i found that the population would tend slightly towards choosiness at the start until the cost started to kick in. Also a value of 100 choosiness is what you get by random mutation anyway. I wanted selection to be able to act on choosiness loci if it was useful to do so, but not act if it was too costly. I felt this change gave the best balance.