Fixed a little glitch that cause incorrect UI-updates when switching from a "Don't care"-category to a "normal" category and back (the radio button were not updated correctly)
Introduced GUI-support for creation of new categories
Introduced GUI-support for renaming categories
Added classes for managing group matches and KO-rounds

The KO_Config class is not yet tested and likely to be changed (e.g. introduce QList instead of native C++ arrays)