Some efficiency improvements and bugfixes. Still horrifically slow. Bridge area won't break into subareas AND appears :? wtf. Means it's not calling InitializeLighting(). All other areas seem to work though. Phantom lighting is gone. Some of the glitchiness was apparently BYOND's fault and has been resolved.

Still lots of spots that don't update until a mob enters them for whatever reason. Also moving through maint still looks awful and I dunno if I can fix that. When the game starts all the lights are off but they turn on a few seconds later. Probably an issue with APC's.
Space is unlit. The lighting is fine but its got no luminosity. Need to fix that.

Profile of world starting up and 6 ticks:
Name                                                                             Self CPU    Total CPU    Real Time        Calls
---------------------------------------------------------------------------------    ---------    ---------    ---------    ---------
/proc/get_area_all_atoms                                                                95.590       95.848       95.848          121
/area/lighting/proc/SetLightLevel                                                       59.633       59.675       59.699         9090
/datum/hud/proc/human_hud                                                                1.949        1.953        1.953            1
/icon/proc/Blend                                                                         0.710        0.710        0.710           26
/atom/movable/Del                                                                        0.616        0.617        0.618          308
/datum/controller/game_controller/proc/process_machines                                  0.467        1.593        7.440            6
/datum/light_source/proc/new_effect                                                      0.400        0.621        0.621          431
/obj/item/weapon/reagent_containers/syringe/update_icon                                  0.326        0.331        0.331           38
/datum/controller/lighting/proc/process                                                  0.317       60.984        0.000            1
/datum/controller/game_controller/proc/process                                           0.266        2.420        0.000            1
/proc/get_areas                                                                          0.258        0.258        0.258          121
/mob/living/carbon/human/update_inv_head                                                 0.230        0.231        0.231            5
/mob/living/carbon/human/update_inv_wear_suit                                            0.215        0.216        0.216            5
/turf/proc/update_lumcount                                                               0.206        0.207        0.220        29841
/proc/getFlatIcon                                                                        0.174        0.884        0.884            1
/obj/New                                                                                 0.152        0.237        0.241          834
/datum/reagents/proc/handle_reactions                                                    0.149        0.234        0.234          361
/datum/light_source/proc/add_effect                                                      0.147        0.977        0.977          431
/proc/get_area                                                                           0.136        0.140        0.157        27031
/datum/light_source/proc/lum                                                             0.132        0.231        0.252        38650