NTSL Update:

- You can now send signals with signal(freq, code). Added a cooldown to limit spamming.
    - You can now use "elseif" in your scripts to create a chain.
    - You can now use "return" in the global scope to end the script from running.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@5701 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/scripting/AST/Statements.dm

@@ -69,11 +69,15 @@
 //
 	IfStatement
 		var
+			skip = 0
 			node
 				BlockDefinition
 					block
 					else_block //may be null
 				expression/cond
+				statement/else_if
+
+		ElseIf
 
 /*
 	Class: WhileLoop