- cleaned up help text in source code - (lines are now shorter)
- using globalish variables at the top of the file for a few things now
- switched from using subprocess.check_call to subprocess.Popen so that
  i could squelch some bullshit openssl noise
- fixed a bug in build_ca_cnf if you didn't supply --commonName
big things:
-   can now generate installers using NSIS for the ca and/or the vpn
    configuration (somewhat fragile at the moment though)

little things:
-   bug fixes: ca.cert.pem vs ca.crt.pem
-   more consistency
-   formatting changes
-   some dumb debug/misc options in dmisc()