not working anymore in iOS 13 beta 5

[JotWee]

*Description of the problem😘
crash, because self.subviews changed

[yonat]

I pushed a fix for the crash, but it's only a partial fix:
On iOS 13 it shows only a single segment selected.

To fix multiple selection on iOS 13 will require more work, I'll fix it if/when I find the time.

[yonat]

@JotWee I ended up re-writing the whole thing to support multiple selection in iOS 13 - see version 2.0.0.