Merge branch 'fix_brawler_attack_speed' into 'master'

Fix Brawler Attack Speed

Currently, Empty Hand sets actor.combat.physspeed to 0.8 on learn, while gauntlets directly add to actor.combat.physspeed, which may not work as intended. For example:
If you start with brawler class and unlearn all unarmed talent, then you'll start the game with 1.0 combat.physspeed instead of 1.2(default speed for gauntlets). Afterwards, if you learn your first talent that grants Empty Hand while wearing heavy gauntlets, your combat.physspeed will be set to 0.8, and then you can switch to gloves to reduce combat.physspeed to 0.6(166% attack speed). 

See merge request !734