Adds ticklag to be a config setting.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@3491 316c924e-a436-60f5-8080-3fe189b3f50e

code/datums/configuration.dm

@@ -32,6 +32,7 @@
 	var/Tensioner_Active = 0			// If the tensioner is running.
 	var/allow_Metadata = 0				// Metadata is supported.
 	var/popup_admin_pm = 0				//adminPMs to non-admins show in a pop-up 'reply' window when set to 1.
+	var/Ticklag = 0.9
 
 	var/list/mode_names = list()
 	var/list/modes = list()				// allowed modes
@@ -289,6 +290,9 @@
 				if("useircbot")
 					useircbot = 1
 
+				if("ticklag")
+					Ticklag = text2num(value)
+
 				else
 					diary << "Unknown setting in configuration: '[name]'"