Merge pull request #82 from hjhcn/master

fix crash bug when use 'JLToastCenter.defaultCenter().cancelAllToast…

Author: devxoul

JLToast/JLToast.swift

@@ -86,8 +86,8 @@ public struct JLToastDelay {
 
     override public func start() {
         if !NSThread.isMainThread() {
-            dispatch_async(dispatch_get_main_queue(), {
-                self.start()
+            dispatch_async(dispatch_get_main_queue(), {[weak self] in
+                self?.start()
             })
         } else {
             super.start()