release fix for max-length bugs

[Roland Schmitt]

I am using version 1.0.4 and noticed that domains with fewer then 2 chars are not detected as invalid.
e.g. single-character-tld@ns.i

I found there is already a fix checked in for top-level domains cannot be fewer than 2 characters, but it is not released yet.
298cd95

Could you make a new release with the latest fixes? Would be really cool :)

[Jeffrey Stedfast]

Done :)