TODO for dnsupdate

- Check if address needs update before sending data
- Add a config-file for hostname, domain and password
  All options should be configurable, ttl and force as well.
- Have options to delete a server as well as add/update
- Integrate the relevant dnspython modules
- Add a GUI
  wxPython and/or curses?


Done:
- Add command line parameter prefixes
  -d domain
  -f force
  -h help
  -i ipadress
  -k keyname
  -n hostname
  -p password
  -t ttl
- Auto-detect the machine's external ip address'
  Should work on OS X, Linux and Windows. 
  Should work with multiple interfaces.
  http://www.showmyip.com/simple eller skriva en egen.