renamed internal fields of EffectProcessor to underscore + old name. Removed unused internal field 'renderables'
Allowed passing of any number of parameters to the user-supplied draw function instead of a fixed 'cam' parameter
Removed duplicate of Entity:update
made epsilon around 0 for tools.sig configurable
Removed tools.bool_str and tools.line_line_intersection
Moved debug log to lust.debug
Renamed internal fields of Sound
Renamed internal fields of collision manager and dispatcher
Added debug to lust via init
Added extensive luadoc for lust