v1.2.0

This is a significant release that improved the stability of react-native-url-polyfill by making sure it's working well on older versions of React Native and newer as well. As always, this is backed by Detox tests. 🎉

• Added Detox tests for React Native 0.62 (#185 by @charpeni).
• Added support for React Native 0.59, 0.60—probably earlier versions as well—and Detox tests for RN 0.60 (#186 by @charpeni, see #154 for further info, and thanks to @chrisbobbe for reporting it).
• Added buffer as a dependency of whatwg-url-without-unicode, instead of relying on a global definition (charpeni/whatwg-url#3 and #189 by @chrisbobbe).
• Added punycode as a dependency of whatwg-url-without-unicode (#200, thanks to @donavon for reporting it in #140).
• Fixed an incompatibility issue with iOS 10's JavaScript Core (#203 by @charpeni, thanks to @xseignard for reporting it in #190).
• Added Detox tests for React Native 0.63 (#207 by @charpeni).

Thanks to everyone who reported issues and contributed to it. 👏