- you can now select one type of database either sqlite or postgres in the config.json (see README)
- fixed bugs in generic SQL Statements
- added generic database class
- changed all sql scripts to generic type
- added settings table to guild to manage settings of the guild
- added extended database class for the guild with predefined sql statements
- added music command volume to change the volume (role dj)
- added music command quality to change the musics quality (role owner)
- moved the discord token and youtube api key to ` api.botToken` and `api.youTubeApiKey` in the `config.json` file
- added `lib.utils.ConfigChecker` class to check for missing required attributes in the config
- Updated README to new circumstances
- allowing Promises for global command reply returns
- event callback regristration wrapped in main function
- stored reply for not playing music (`~np`) in servercommands.json
- made imports constant for lib/cmd
- moved YouTube url operations to lib/utils
- removed try catch surrounding promises in play and playnext callback and added .catch to promises
- added .catch to promises in music.js
- added license README badge