If "BasicIO" is passed as last argument, Basic IO will be enabled.
- Basic input/output : disable the advanced I/O class from MCC 1.3+
- Do not print colors, output messages directly with §c color tags
This allows an external GUI to manage input/output instead of MCC.
http://www.minecraftforum.net/topic/1314800-/page__st__180#entry23903618