Cleanup of the mail text signature. #1088

inc/Mailer.class.php

inc/lang/ar/mailwrap.html

inc/lang/bg/mailwrap.html

inc/lang/ca/mailwrap.html

inc/lang/cs/mailwrap.html

inc/lang/da/mailwrap.html

inc/lang/de-informal/mailwrap.html

inc/lang/de/mailwrap.html

inc/lang/el/mailwrap.html

inc/lang/en/mailwrap.html

inc/lang/eo/mailwrap.html

inc/lang/es/mailwrap.html

inc/lang/eu/mailwrap.html

inc/lang/fa/mailwrap.html

inc/lang/fi/mailwrap.html

inc/lang/fr/mailwrap.html

inc/lang/gl/mailwrap.html

inc/lang/hu/mailwrap.html

inc/lang/it/mailwrap.html

inc/lang/ja/mailwrap.html