* Replace bEvolution with fRegresses
An evolution value of 2 meant that they devolved, so only Moses and non-sober Larry regress
* Update growth modifiers for specific mercs
Since we can't (currently) force a merc to not grow, we'll just set their growth modifier to an extremely high (slow) value
Len: extremely slow
Spike: extremely slow
Henning: extremely slow
Pops: extremely slow
Wally: very slow (Marksmanship only)
Carp: slow
Leon: extremely slow
Sam: extremely slow
* Add default growth modifiers (0) to the rest of the mercs