feat(invite): began work on email template build system, and css inlining

emails/grunt/uncss.js

@@ -0,0 +1,9 @@
+module.exports = {
+    dist: {
+        src: ['templates/*.html'],
+        dest: 'dist/css/tidy.css',
+        options: {
+            report: 'min' // optional: include to report savings
+        }
+    }
+};