Xcode7 使用NSURLSession发送HTTP请求的问题
报错信息：
Application Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure.
Temporary exceptions can be configured via your app's Info.plist file.
解决如下：
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报错信息：
Application Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure.
Temporary exceptions can be configured via your app's Info.plist file.
解决如下：
