RTL fixes for Media Lib, and upgrading color box to 1.5.13

src/Orchard.Web/Modules/Orchard.ImageEditor/Styles/image-editor.css

@@ -54,4 +54,12 @@
     display: inline-block;
     width: 200px;
     margin-top: 10px;
+}
+
+/* RTL */
+
+.dir-rtl .filter {
+    float: right;
+    margin-right: inherit;
+    margin-left: 20px;
 }