load of fixes

- increased age_min from 18 to 21
- gave RCDs an option of airlock direction
- buffed bluespace trays
- made more windows / walls directional and merging with airlocks/windows
- gave the rusty walls perspective sprites
- removed stoner language from beach bum
- enabled prisoner (for now)
- buffed HEVA not to be weak to goliaths
- brought back smaller, more realistic bee sprites

code/modules/jobs/job_types/prisoner.dm

@@ -4,8 +4,8 @@
 	department_head = list("The Security Team")
 	department_flag = CIVILIAN
 	faction = "Station"
-	total_positions = 0
-	spawn_positions = 0
+	total_positions = 1 //GS13 - enabling prisoner (for now)
+	spawn_positions = 1 //GS13 - enabling prisoner (for now)
 	supervisors = "the security team"
 	random_spawns_possible = FALSE