Koha::Manual - Build links to the documentation
Return the version to use. Either the system preference "Version", or the last version.major value if using unstable.
Return the base URL to use.
Use system preferences 'KohaManualLanguage' and 'KohaManualBaseURL' to properly build the URL.
my $koha_manual_url = Koha::Manual::get_url($referer, $lang);
Return the external URL to the manual for the $url passed in parameter