Not Appstore safe?

[Jan Schwenzien]

✔️ Issue Checklist

• I have updated PopMenu to the latest version.
• I have read the Contribution Guidelines.
• I have read the Documentation.
• I have searched for GitHub issues.

✍🏻 Issue Description

This line

PopMenu/PopMenu/View Controller & Views/PopMenuViewController.swift

Line 88 in 48c9243

 if let buttonView = sourceBarButtonItem.value(forKey: "view") as? UIView { 

seems to be using a private API increasing the chance of getting rejected for the app store (according to https://forums.developer.apple.com/thread/87823 which also states this might fail on iOS 11).

[Cali Castle]

I didn't know that, I used it in my other project and passed TestFlight, but that's a good point and thanks for posting that forum link, I'll fix it in a minor update, thanks!