v0.56.0

Gameplay [list][*] Add second overseer class: zealot, a simple class[list][*] Strengths: Faster overseer and drones, stronger overseer dash, more overseer health[*] Weaknesses: no psi-storm, shorter range, lower maneuverability of overseer and drones[/list][/list] Tutorialization [list][*] Add help screen comparing overseer class parameters[/list] Bots [list][*] Improve bot behavior when carrying the flag by taking into account the flag’s slowing effect[/list]