在IOS9设备上安装企业签名的app时，会提示“未受信任的企业级开发者”
解决方案为：http://jingyan.baidu.com/article/335530da83801c19cb41c39f.html
如果出现在通用中找不到描述文件的情况
解决方案为：多次尝试关闭设置，并重新进入通用。或者重启手机
当点击验证，有时会出现无法验证通过的情况
解决方案为：切换手机网络，这种情况通常是网络原因造成的
iOS 9 introduces a new feature to help protect users from installing in-house apps from untrusted sources. While no new app signing or provisioning methods are required, the way your enterprise users manage in-house apps installed on their iOS 9 devices will change.
In-house apps installed using an MDM solution are explicitly trusted and will no longer prompt the user to trust the developer that signed and provisioned the app. If your enterprise app does not use an MDM solution, users who install your app for the first time will be prompted to trust the developer. All users who install your app for the first time will need an internet connection.