workaround to make cost-based ability colours display the correct cost for overwatch.

updated the way gunpoint is handled, to improve compatability.
skill lists for gunpoint and needlepoint now exposed in config.

added an icon to speedster.

attempting a slightly more violent fix for reload: It now empties the abilitycosts array instead of just overwriting the AP cost.

fixed headhunter skill configs not applying.
swapped multihook visualization to teleport, it looks uncool but at least you know where you are.
spray and pray now works.
twin fangs and thunderclap no longer hit twice per target.

fixed reload taking all actions.
fixed missing configs for grape, taser and caustic shots.