Simple colouring of the predicted RGS % efficiency.
Merge commit '8ff9608d40651cc70cdc2a7af1811ec697748b60' into gameplay/testing
Avoid one sqrt().
Don't error out when asked to render weapon icon WP_NONE.
Add some help text concerning the ‘under attack’ messages.
Fix human buildable power prediction broken in 34b20a4.
Reset ammo/clips when buying weapons with infinite ammo.