* [ASTextKitFontSizeAdjuster] Replace use of boundingRectWithSize:options:context: with boundingRectForGlyphRange: inTextContainer:
`boundingRectWithSize:options:context:` started returning different values for the same strings between iOS 10.2 and iOS 10.3. Switching to using `NSLayoutManager`’s `boundingRectForGlyphRange: inTextContainer:` fixed this. It also makes sure we are consistent with what `ASTextKitTailTruncater` uses.
* updated changelog