returns the nick of the user . concode_field_sep String _prefix concode_elem_sep String _lowerNick concode_elem_sep String _nick concode_field_sep String getPrefix concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep boolean equals concode_elem_sep boolean isOp concode_elem_sep String toString concode_elem_sep boolean hasVoice concode_elem_sep int compareTo
String function ( ) { return _nick ; }