GH-163: update "sensible" regex with new tlds

This is probably a losing battle.  Maybe I should just give in and recommend people use the "nearly any" option.

$ echo $(grep '^\.' tlds | cut -c2- | egrep -v '^[a-z]{2}$' | sort | uniq) | fold -w 61 -s | tr ' ' '|' | sed 's/^/"/;s/$/"/'