add/remove policy data from subsection

cms/static/sass/_base.scss

@@ -124,13 +124,15 @@ label {
 }
 
 .new-unit-item,
-.new-subsection-item {
+.new-subsection-item,
+.new-policy-item {
     @include grey-button;
     margin: 5px 8px;
     padding: 3px 10px 4px 10px;
     font-size: 10px;
 
     .new-folder-icon,
+    .new-policy-icon,
     .new-unit-icon {
         position: relative;
         top: 2px;

cms/static/sass/_graphics.scss

@@ -171,6 +171,14 @@
 	background: url(../img/new-unit-icon.png) right no-repeat;
 }
 
+.new-policy-icon {
+	display: inline-block;
+	width: 23px;
+	height: 12px;
+	margin-right: 8px;
+	background: url(../img/new-unit-icon.png) right no-repeat;
+}
+
 .textbook-icon {
 	display: inline-block;
 	width: 32px;