Add usage to urbandict if no term is given
Add usage to urbandict if no term is given

brhoades/EuIrcBot,euank/EuIrcBot,LinuxMercedes/EuIrcBot,euank/EuIrcBot,gmackie/EuIrcBot,LinuxMercedes/EuIrcBot,gmackie/EuIrcBot,brhoades/EuIrcBot