Remove check for theme e-mail templates on email

Remove the check for e-mail templates located in themes to ensure the
make_clickable function can run on all e-mails.
Fix missing label end tag and input close

These changes fix an issue where the Membership Levels page will not
appear in IE (tested on IE9).
Merge remote-tracking branch 'upstream/dev' into dev
Merge pull request #58 from scottsousa/dev

Remove check for theme e-mail templates on email