stoken/stoken-gui (new formula)

stoken - Software Token for Linux/UNIX. I am using this to access my firewall based on RSA security. 
@mikemcquaid 
1. I will convert to if/else, thanks.
2. I submitted issue to upstream. I don't want to do pull request, because patch can be dangerous for the systems (Linux?) with support of versioning-script. For OSX  i don't see any problems from it.