WSLabelの引数省略を忘れていたので追加
Merge branch 'master' of https://github.com/mirichi/DXRubyWS

ts commit e92b2a7d78b344b597df484ea32ce5bfff08a149, reversing
changes made to 0b4a69220f1e993dced2c94ebb62309e632cbe93.
Merge branch 'master' of https://github.com/mirichi/DXRubyWS
WSRadioButtonにカーソルキーでの操作を追加