modified trueskill to show rank number aswell as an ELO rating instead
of the uncertainty.

The ELO is determined by (rank)/50 * 3000;
The maxmimum trueskill rank acheivable is 50
I linearly mapped it to a ELO number of 3000;

This is to make it more similar to how people usually
understand rank
Merge branch 'dev' of gandalf:tf2Skill into dev