diff --git a/admin_interface/templates/admin/base_site.html b/admin_interface/templates/admin/base_site.html
index 7bb3c32..39367d4 100644
--- a/admin_interface/templates/admin/base_site.html
+++ b/admin_interface/templates/admin/base_site.html
@@ -6,296 +6,295 @@
 <style type="text/css">
 
 {% if theme.active %}
-    
-    #header { 
-        height:auto; 
-        min-height:40px; 
+
+    #header {
+        height:auto;
+        min-height:40px;
         background:{{ theme.css_header_background_color }};
         color:{{ theme.css_header_text_color }};
     }
-    
+
     #header #user-tools a {
         color:{{ theme.css_header_link_color }};
     }
-    
-    #header #user-tools a:hover, 
+
+    #header #user-tools a:hover,
     #header #user-tools a:active {
         color:{{ theme.css_header_link_hover_color }};
         border-bottom-color:rgba(255, 255, 255, 0.5);
     }
-    
-    #branding h1 img.logo { 
-        max-height:100px; 
-        margin-top:10px; 
-        margin-bottom:10px; 
+
+    #branding h1 img.logo {
+        max-height:100px;
+        margin-top:10px;
+        margin-bottom:10px;
         margin-right:15px;
     }
-    
+
     #branding h1 {
         color:{{ theme.css_header_title_color }};
     }
-    
+
     #branding h1 img+span {
         white-space:nowrap;
     }
-    
-    .module h2, 
-    .module caption, 
+
+    .module h2,
+    .module caption,
     .module.filtered h2 {
         background:{{ theme.css_module_background_color }};
         color:{{ theme.css_module_text_color }};
     }
-    
-    .module a.section:link, 
+
+    .module a.section:link,
     .module a.section:visited {
         color:{{ theme.css_module_link_color }};
     }
-    
-    .module a.section:active, 
+
+    .module a.section:active,
     .module a.section:hover {
         color:{{ theme.css_module_link_hover_color }};
     }
-    
+
     div.breadcrumbs {
         background:{{ theme.css_module_background_color }};
         color:{{ theme.css_module_text_color }};
     }
-    
+
     div.breadcrumbs a {
         color:{{ theme.css_module_link_color }};
     }
-    
-    div.breadcrumbs a:hover, 
+
+    div.breadcrumbs a:hover,
     div.breadcrumbs a:active {
         color:{{ theme.css_module_link_hover_color }} !important;
     }
-    
+
     fieldset.collapse {
         border: 1px solid transparent;
     }
-    
+
     fieldset.collapse.collapsed a.collapse-toggle {
         color:{{ theme.css_generic_link_color }} !important;
         font-weight: bold;
         text-transform: lowercase;
     }
-    
-    fieldset.collapse.collapsed a.collapse-toggle:hover, 
+
+    fieldset.collapse.collapsed a.collapse-toggle:hover,
     fieldset.collapse.collapsed a.collapse-toggle:active {
         color:{{ theme.css_generic_link_hover_color }} !important;
     }
-    
+
     fieldset.collapse a.collapse-toggle {
         color:{{ theme.css_module_link_color }} !important;
         font-weight: bold;
         text-transform: lowercase;
     }
-    
-    fieldset.collapse a.collapse-toggle:hover, 
+
+    fieldset.collapse a.collapse-toggle:hover,
     fieldset.collapse a.collapse-toggle:active {
         color:{{ theme.css_module_link_hover_color }} !important;
     }
-    
-    
-    .inline-group h2, 
+
+
+    .inline-group h2,
     .inline-group h2 {
         background:{{ theme.css_module_background_color }};
         color:{{ theme.css_module_text_color }};
     }
-    
+
     .selector-chosen h2 {
         background:{{ theme.css_module_background_color }} !important;
         color:{{ theme.css_module_text_color }} !important;
     }
-    
+
     a:link, a:visited {
         color:{{ theme.css_generic_link_color }};
     }
-    
+
     a:hover {
         color:{{ theme.css_generic_link_hover_color }};
     }
-    
+
     .button, input[type=submit], input[type=button], .submit-row input, a.button {
         background:{{ theme.css_save_button_background_color }};
         color:{{ theme.css_save_button_text_color }};
     }
-    
+
     .button:active, input[type=submit]:active, input[type=button]:active,
     .button:hover, input[type=submit]:hover, input[type=button]:hover {
         background:{{ theme.css_save_button_background_hover_color }};
         color:{{ theme.css_save_button_text_color }};
     }
-    
+
     .button.default, input[type=submit].default, .submit-row input.default {
         background:{{ theme.css_save_button_background_color }};
         color:{{ theme.css_save_button_text_color }};
     }
-    
+
     .button.default:active, input[type=submit].default:active,
     .button.default:hover, input[type=submit].default:hover {
         background:{{ theme.css_save_button_background_hover_color }};
         color:{{ theme.css_save_button_text_color }};
     }
-    
-    .submit-row a.deletelink:link, 
+
+    .submit-row a.deletelink:link,
     .submit-row a.deletelink:visited {
         background:{{ theme.css_delete_button_background_color }};
         color:{{ theme.css_delete_button_text_color }};
     }
-    
+
     .submit-row a.deletelink:hover {
         background:{{ theme.css_delete_button_background_hover_color }} !important;
         color:{{ theme.css_delete_button_text_color }};
     }
-    
+
     /*
     #changelist table tbody tr.selected {
         background-color:#FFFFCC;
     }
     */
-    
+
     #changelist .paginator {
         margin-top:-1px !important; /* merge 2 borders into 1 */
         line-height:42px;
     }
-    
-    .paginator a, 
-    .paginator a:link, 
+
+    .paginator a,
+    .paginator a:link,
     .paginator a:visited,
     .paginator .this-page {
         padding:7px 12px !important;
         {% if theme.css_module_rounded_corners %}border-radius:4px;{% endif %}
     }
-    
-    .paginator a, 
-    .paginator a:link, 
+
+    .paginator a,
+    .paginator a:link,
     .paginator a:visited {
-        background-color:#ffffff !important; 
+        background-color:#ffffff !important;
         color:{{ theme.css_generic_link_color }} !important;
     }
-    
-    .paginator a:hover, 
+
+    .paginator a:hover,
     .paginator a:active {
         background-color:#f8f8f8 !important;
         color:{{ theme.css_generic_link_hover_color }} !important;
     }
-    
+
     .paginator .this-page {
         background-color:{{ theme.css_module_background_color }} !important;
         color:{{ theme.css_module_link_color }} !important;
     }
-    
-    .paginator a, 
+
+    .paginator a,
     .paginator .this-page {
         margin-left:0px;
     }
-    
-    .paginator .this-page, 
+
+    .paginator .this-page,
     .paginator a.end {
         margin-right:25px;
     }
-    
+
     .paginator .this-page + a:not(.showall)  {
         margin-left:-25px !important;
     }
-    
-    body .paginator a.showall, 
-    body .paginator a.showall:link, 
+
+    body .paginator a.showall,
+    body .paginator a.showall:link,
     body .paginator a.showall:visited {
         margin-left:20px;
         color:{{ theme.css_generic_link_color }} !important;
     }
-    
-    body .paginator a.showall:hover, 
+
+    body .paginator a.showall:hover,
     body .paginator a.showall:active {
         color:{{ theme.css_generic_link_hover_color }} !important;
     }
-    
+
     /* OTHER FIXES */
-    
+
     /* reduced width */
     .login #container {
         width:320px !important;
         min-width:320px !important;
     }
-    
+
     /* same lateral padding as in logged view */
     .login #header {
         padding:10px 25px !important;
     }
-    
+
     /* login button right aligned */
     .login #header #branding h1 img+span {
         display:block;
     }
-    
+
     /* login button right aligned */
     .login .submit-row {
         padding-left:0 !important;
         text-align:right !important;
     }
-    
+
     /* top-right buttons color on hover -> just a lighten grey */
-    .object-tools a:hover, 
+    .object-tools a:hover,
     .object-tools li:hover a {
         background-color:#AAAAAA;
-    } 
-    
+    }
+
     /* fix help text icon on newline */
     .inline-group thead th {
         white-space:nowrap;
     }
-    
+
     .inline-group thead th img {
         vertical-align: -2px;
         margin-left: 5px;
     }
-    
+
     form .form-row p.file-upload > a {
-        margin-right:10px;    
+        margin-right:10px;
     }
-    
-    form .form-row p.file-upload .clearable-file-input { 
+
+    form .form-row p.file-upload .clearable-file-input {
         display:inline-block;
     }
-    
+
     form .wide p.help {
         padding-left:10px !important;
     }
-    
+
     textarea.tinymce ~ p.help {
         margin-top:5px !important;
     }
-    
+
     .aligned p.file-upload {
         display:table;
     }
-    
+
     /* fix lateral padding to align text with field labels */
-    .module h2, 
-    .dashboard .module caption, 
-    .inline-group h2, 
-    .module.filtered h2, 
+    .module h2,
+    .dashboard .module caption,
+    .inline-group h2,
+    .module.filtered h2,
     .inline-group h2 {
-        padding:8px 10px; 
+        padding:8px 10px;
         {% if theme.css_module_rounded_corners %}border-radius:4px;{% endif %}
     }
-    
+
     .module.filtered h2 {
         border-bottom-left-radius:0;
         border-bottom-right-radius:0;
     }
-    
+
     .module.filtered #changelist-filter {
         border-bottom-left-radius:4px;
         border-bottom-right-radius:4px;
     }
-    
+
     .module.filtered #changelist-filter select {
         background-color:#ffffff;
     }
-    
 
     .module.filtered #changelist-filter li.selected a,
     .module.filtered #changelist-filter li.selected a:hover {
@@ -305,143 +304,143 @@
     #content-related {
         {% if theme.css_module_rounded_corners %}border-radius:4px;{% endif %}
     }
-    
+
     /* selector chooseall / clearall color on hover -> just a lighten grey */
     a.selector-chooseall:hover, a.selector-clearall:hover {
         color:#888888 !important;
     }
-    
+
     .inline-related h3 {
         padding:6px 10px !important;
     }
-    
+
     /*
     .inline-group .tabular thead th:last-child:not([class]):not([style]) {
-        text-align:center;    
+        text-align:center;
     }
     */
-    
-    /*.inline-group .tabular tr.has_original td.original,	*/
+
+    /*.inline-group .tabular tr.has_original td.original,   */
     .inline-group .tabular tr td.delete {
         vertical-align:middle !important;
         text-align:center !important;
     }
-    
+
     .inline-group .tabular tr td.delete a.inline-deletelink {
         float:none;
         display:inline-block;
     }
-    
+
     /* improve django-modeltranslation support - https://github.com/deschler/django-modeltranslation/pull/313/commits */
 
     #content h1 select {
         text-transform:uppercase;
-        margin-left:15px;  
+        margin-left:15px;
     }
-    
+
     .ui-tabs .ui-tabs-nav {
         padding:10px 0 0 10px !important;
     }
-    
+
     .ui-tabs .ui-tabs-nav li {
         margin-left:-1px !important;
     }
-    
+
     .ui-tabs .ui-tabs-nav li a {
         outline:none;
         background-color:#f8f8f8 !important;
         border:1px solid #eeeeee !important;
         border-bottom:none !important;
         text-transform:uppercase;
-        
+
         padding:7px 14px 8px 14px !important;
         margin-top:1px !important;
-        
+
     }
-    
-    .ui-tabs .ui-tabs-nav li.ui-tabs-active a, 
+
+    .ui-tabs .ui-tabs-nav li.ui-tabs-active a,
     .ui-tabs .ui-tabs-nav li.ui-tabs-selected a {
-        
+
         padding:8px 14px 8px 14px !important;
         margin-top:0px !important;
-        
+
         margin-bottom:-1px !important;
-        
+
         background-color:#FFFFFF !important;
         color:{{ theme.css_module_background_color }} !important;
-        
+
         border-bottom:1px solid #FFFFFF !important;
     }
-    
+
     .inline-group .tabular .ui-tabs .ui-tabs-panel {
         padding:8px !important;
     }
-    
-    #changelist .row1:not(.selected):hover, 
+
+    #changelist .row1:not(.selected):hover,
     #changelist .row2:not(.selected):hover {
         background:#f9f9f9;
     }
-    
+
     .row2 {
         background:#fcfcfc;
     }
-    
+
     .row2 .ui-tabs .ui-tabs-nav li a {
         background-color:#f5f5f5 !important;
         border:1px solid #ebebeb !important;
     }
-    
-    .row2 .ui-tabs .ui-tabs-nav li.ui-tabs-active a, 
+
+    .row2 .ui-tabs .ui-tabs-nav li.ui-tabs-active a,
     .row2 .ui-tabs .ui-tabs-nav li.ui-tabs-selected a {
         background-color:#fcfcfc !important;
         border-bottom:1px solid #fcfcfc !important;
     }
-    
+
     .list-filter-dropdown {
-        margin-top:10px; 
+        margin-top:10px;
         margin-bottom:20px;
     }
-    
+
     .list-filter-dropdown select {
-        width:90%; 
+        width:90%;
         margin-right:5%;
     }
-    
-    
+
+
     /* ckeditor + light theme - https://github.com/Ikimea/ckeditor-light-theme */
-    
+
     .cke_inner, .cke_wysiwyg_frame {
         border-top-left-radius: 4px !important;
         border-top-right-radius: 4px !important;
         border-bottom-left-radius: 4px !important;
         border-bottom-right-radius: 4px !important;
     }
-    
+
     .cke_top {
-        background: #f6f6f6 !important;  
+        background: #f6f6f6 !important;
         border-top: none;
-        
+
         border-top-left-radius: 4px !important;
         border-top-right-radius: 4px !important;
-        
+
         -moz-box-shadow: none !important;
         -webkit-box-shadow: none !important;
         box-shadow: none !important;
     }
-    
+
     .cke_bottom {
         background: #f6f6f6 !important;
         border-top: 1px solid #efefef !important;
-        
+
         border-bottom-left-radius: 4px !important;
         border-bottom-right-radius: 4px !important;
     }
-    
+
     .cke_source {
         padding: 13px 15px !important;
         box-sizing: border-box !important;
     }
-    
+
     a.cke_button_on {
         -moz-box-shadow: none !important;
         -webkit-box-shadow: none !important;
@@ -449,21 +448,21 @@
         background-color: rgba(0,0,0,0.1) !important;
         border-radius: 4px !important;
     }
-    
+
     .cke_resizer {
         border-color: transparent #999 transparent transparent !important;
     }
-    
+
     {% if theme.css %}
         {{ theme.css|safe }}
     {% endif %}
 
 {% else %}
-    
+
     #branding h1 img.logo {
         display:none;
     }
-    
+
 {% endif %}
 
 </style>