Added utils/slugify

• Added:
- utils/slugify

app/javascript/gabsocial/utils/slugify.js

@@ -0,0 +1,9 @@
+// https://gist.github.com/mathewbyrne/1280286
+export default function slugify(text) {
+  return text.toString().toLowerCase()
+    .replace(/\s+/g, '-')           // Replace spaces with -
+    .replace(/[^\w\-]+/g, '')       // Remove all non-word chars
+    .replace(/\-\-+/g, '-')         // Replace multiple - with single -
+    .replace(/^-+/, '')             // Trim - from start of text
+    .replace(/-+$/, '');            // Trim - from end of text
+}