Compares a Doctrine version with the current one.
string $version Doctrine version to compare.:
int Returns -1 if older, 0 if it is the same, 1 if version passed as argument is newer.
public static function compare($version) {
$currentVersion = str_replace(' ', '', strtolower(self::VERSION));
$version = str_replace(' ', '', $version);
return version_compare($version, $currentVersion);
}