Added version control.
  The script will now check the version of the script and notify you
  if it is out of date. This message will only appear if you run
  imgur with debug output. This script will fail to tell you
  the command you should run to update the script if you installed it
  as a name other than 'imgur' as the script will run a search for the
  location of the installation with only the name 'imgur'.