Move tag posters and photos to media database.

src/utils/escape-html.js

@@ -0,0 +1,10 @@
+function escapeHtml(text) {
+    return text
+        .replace(/&/g, '&')
+        .replace(/</g, '&lt;')
+        .replace(/>/g, '&gt;')
+        .replace(/"/g, '&quot;')
+        .replace(/'/g, '&#39;');
+}
+
+module.exports = escapeHtml;