Revises assistant job, and defines config limitations

code/controllers/configuration_vr.dm

@@ -5,6 +5,8 @@
 /datum/configuration
 	var/list/engine_map	// Comma separated list of engines to choose from.  Blank means fully random.
 	var/time_off = FALSE
+	var/limit_interns = -1 //Unlimited by default
+	var/limit_visitors = -1 //Unlimited by default
 
 /hook/startup/proc/read_vs_config()
 	var/list/Lines = file2list("config/config.txt")
@@ -41,6 +43,10 @@
 				config.fax_export_dir = value
 			if ("items_survive_digestion")
 				config.items_survive_digestion = 1
+			if ("limit_interns")
+				config.limit_interns = text2num(value)
+			if ("limit_visitors")
+				config.limit_visitors = text2num(value)
 			if ("time_off")
 				config.time_off = TRUE