0.5 - 2014-08-15
    Added a check to see if cURL was successful in
    retrieving the XML-file. If it was not, then exit
    with a UNKNOWN state and print the cURL error message.

0.4 - 2014-08-09
    Added /u modifier to more preg_matches for UTF-8
    Replaced a-zåäö with \p{L}
    Fixed a couple of spelling errors and missing words
    Replaced $program with PROGRAM on line 122

0.3 - 2014-08-03
    Added /u modifier to the preg_match for UTF-8

0.2 - 2014-07-31
    Replaced 'shell_exec("curl -s URL")' with PHP cURL function
    Replaced all state-variables with constants
    Replaced version and program variables with constants

0.1 - 2014-07-27
    First release of check_smhiwarn