add header to plugin with copyright and repository url
add .ca domain validation

inspired from comment from here:
http://exchange.nagios.org/directory/Plugins/Internet-Domains-and-WHOIS/check_domain/details
handle *.ie domain

processed plugin comments for possible errors
http://exchange.nagios.org/directory/Plugins/Internet-Domains-and-WHOIS/check_domain/detailsc
print domain name what was checked in results
handle .uk domain
add script to test known domains
release as v1.2.3