Committing Carn's patch from here: http://bit.ly/ww7gmD

Game Admins and Game Masters can now toggle random events from happening during a round, it is also an option in the config file.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@3017 316c924e-a436-60f5-8080-3fe189b3f50e

code/datums/configuration.dm

@@ -36,6 +36,7 @@
 	var/list/modes = list()				// allowed modes
 	var/list/votable_modes = list()		// votable modes
 	var/list/probabilities = list()		// relative probability of each mode
+	var/allow_random_events = 0			// enables random events mid-round when set to 1
 	var/allow_ai = 1					// allow ai job
 	var/hostedby = null
 	var/respawn = 1
@@ -245,7 +246,10 @@
 					else
 						diary << "Incorrect probability configuration definition: [prob_name]  [prob_value]."
 
-				if ("kick_inactive")
+				if("allow_random_events")
+					config.allow_random_events = 1
+
+				if("kick_inactive")
 					config.kick_inactive = 1
 
 				if("load_jobs_from_txt")