Supported to the latest OS.

- Search word in Favourite and Recent
- Auto Pronounce when search word. Default is disable, enable it in Settings
- Add action to translate a word by Lingoes when select a word
- Improve download Nature Voice Engine
- Fix Word Reminder does not run on Android O and higher and some minor bugs.

1, Added and modified contents.
2, Support latest SDK.

Updated to latest SDK.

Added support for iPhone5.

Improved the response in history screen.