SimpleAutoMessage

+ Added random broadcast feature
+ Added warn-on-update feature
+ Remade auto-update feature
+ Added /simpleautomessage update command
+ Fixed prefix in commands
+ Update of EN,FR,NL,SE translations
+ Added mcstats graphs
+ Added support for CB 1.6.4 R*.* + CB 1.7.2 (dev-build)
- Fixed bug causing config to reload when using dev-builds
- Fixed typos in the config.yml
- Fixed typos in the plugin.yml