0.2.0

1. Refactor code(ready for chest lock module)
2. Fix username field cannot been saved
3. Disable banner print of default config
4. Add i18n support(has not test)
5. Build a mysql-support jar file
6. Add identifierSet command(but forgetPassword not completely)

Attention:

1. internal database file is fully compatible, you can keep mineauth/ folder
2. $MINECRAFTSERVERPATH/world/serverconfig/mineauth-server.toml is updated, you should backup and re-build it