reinstate the chaosmonkey

services/web/public/coffee/ide/editor/Document.coffee

@@ -116,6 +116,26 @@ define [
 		flush: () ->
 			@doc?.flushPendingOps()
 
+		chaosMonkey: (line = 0, char = "a") ->
+			orig = char
+			copy = null
+			pos = 0
+			timer = () =>
+				unless copy? and copy.length
+					copy = orig.slice() + ' ' + new Date() + '\n'
+					line += if Math.random() > 0.1 then 1 else -2
+					line = 0 if line < 0
+					pos = 0
+				char = copy[0]
+				copy = copy.slice(1)
+				@ace.session.insert({row: line, column: pos}, char)
+				pos += 1
+				@_cm = setTimeout timer, 100 + if Math.random() < 0.1 then 1000 else 0
+			@_cm = timer()
+
+		clearChaosMonkey: () ->
+			clearTimeout @_cm
+
 		pollSavedStatus: () ->
 			# returns false if doc has ops waiting to be acknowledged or
 			# sent that haven't changed since the last time we checked.