Merge branch 'hotfix/#6648-#6647-zend-i18n-validator-float-not-float-error-message'

Close #6648
Close #6647
Update Hostname.php

Updated list of TLD's
Update Hostname.php

Separated out to one per line. 
You might want to check the special character ones as they are fiddly.

Thanks,

Rick.
Merge branch 'hotfix/#6937-update-allowed-hostname-tlds' into develop

Close #6937
Forward port #6937