tld option should take a tld as an attribute

[rjmoggach]

tld (top level domains) vary - .com .net .co .tv .io etc. etc.

this flag should take the desired tld as an attribute

http://en.wikipedia.org/wiki/Top-level_domain

http://en.wikipedia.org/wiki/List_of_Internet_top-level_domains

[jpscharf]

This would be great!

[iamgroot42]

This PR fixes this issue : #16