Tg port 2 15 (#230)

* defines/helpers

* globalvars, onclick, controllers

* datums and game

* woooooooooorld. Uh. dm

* modules sans mobs client admin

* modules/admin

* pref shit

* modules/mob

* icon updates

* extra things

* Cherrypicked fixes from open PRs

* metastation.tgm fix

* a better meta fix

* reverts async breakings

code/game/objects/items/weapons/RPD.dm

@@ -609,4 +609,4 @@ var/global/list/RPD_recipes=list(
 #undef METER_MODE
 #undef DISPOSALS_MODE
 #undef CATEGORY_ATMOS
-#undef CATEGORY_DISPOSALS
+#undef CATEGORY_DISPOSALS