Fix 500 when saving /site/edit without email
When saving /site/edit with no no_reply_email set, a 500 error page
would be returned due to an empty value being passed as value to
the datastore (which is not allowed for email fields).
body { direction: rtl; }
/* login styles */
.login .form-row { float:right; }
.login .form-row label { float:right; padding-left:0.5em; padding-right:0; text-align:left;}
.login .submit-row { clear:both; padding:1em 9.4em 0 0; }
/* global styles */
th { text-align: right; }
.module h2, .module caption { text-align: right; }
.addlink, .changelink { padding-left:0px; padding-right:12px; background-position:100% 0.2em; }
.deletelink { padding-left:0px; padding-right:12px; background-position:100% 0.25em; }
.object-tools { float:left; }
/* layout styles */
#user-tools { right:auto; left:0; text-align:left; }
div.breadcrumbs { text-align:right; }
#content-main { float:right;}
#content-related { float:left; margin-left:-19em; margin-right:auto;}
.colMS { margin-left:20em !important; margin-right:10px !important;}
/* dashboard styles */
.dashboard .module table td a { padding-left:.6em; padding-right:12px; }
/* changelists styles */
.change-list .filtered { background:white url(../img/admin/changelist-bg_rtl.gif) top left repeat-y !important; }
.change-list .filtered table { border-left:1px solid #ddd; border-right:0px none; }
#changelist-filter { right:auto; left:0; border-left:0px none; border-right:1px solid #ddd;}
.change-list .filtered table, .change-list .filtered .paginator, .filtered #toolbar, .filtered div.xfull { margin-right:0px !important; margin-left:160px !important; }
#changelist-filter li.selected { border-left:0px none; padding-left:0px; margin-left:0; border-right:5px solid #ccc; padding-right:5px;margin-right:-10px; }
/* form styles */
.aligned label { padding:0 0 3px 1em; float:right; }
.submit-row { text-align: left }
.submit-row p.deletelink-box { float: right;}
.submit-row .deletelink { background:url(../img/admin/icon_deletelink.gif) 0 50% no-repeat; padding-right:14px; }
.vDateField, .vTimeField { margin-left:2px; }
form ul.inline li { float:right; padding-right:0; padding-left:7px; }
input[type=submit].default, .submit-row input.default { float:left; }
fieldset .field-box { float:right; margin-left: 20px; }
.errorlist li {background-position: 100% .3em; padding: 4px 25px 4px 5px; }
.errornote {background-position: 100% .3em; padding: 4px 25px 4px 5px;
/* widget styles */
.calendarnav-previous { top:0; left:auto; right:0; }
.calendarnav-next { top:0; right:auto; left:0;}
.calendar caption, .calendarbox h2 { text-align:center; }
.selector { float: right;}
.selector .selector-filter { text-align: right;}
/* x unsorted */
.inline-related h2 { text-align:right }