Improved arguments parser:

The order in which the arguments are given is now flexible

Usage: mint-choose-debian-mirror [options]

Options:
  -c (--configure): configuration mode
  -r (--reconfigure): reconfiguration mode. Pass previous version as an argument (-r:1.0)
  -d (--dry-run): show current and best server (no configuration)
  -h (--help): show this help