Version bump to `2.3.0` (add keyboardAppearance, fix fieldLabel font, textfield return delegate method)
Version bump to `2.3.0` (add keyboardAppearance, fix fieldLabel font, textfield return delegate method)

* Add `keyboardAppearance` property, to customize internal textfield's keyboardAppearance. See: https://github.com/clusterinc/CLTokenInputView/issues/22

* `UIAppearance` support for field label. See: https://github.com/clusterinc/CLTokenInputView/issues/10

* Add optional delegate method to handle what to do when the internal textfield returns. See: https://github.com/clusterinc/CLTokenInputView/issues/15

* Fix 'dead store' warnings during Analysis. See: https://github.com/clusterinc/CLTokenInputView/issues/21

nguyentrai2011/CLTokenInputView,mondough/CLTokenInputView,clusterinc/CLTokenInputView