Re-add flavor and steps to wizard.

setup/server.py

@@ -78,7 +78,12 @@ def build_app(path):
     @prefix_bp.route("/")
     @root_bp.route("/")
     def wizard():
-        return flask.render_template('wizard.html', subnet6=random_ipv6_subnet())
+        return flask.render_template(
+            'wizard.html',
+            flavor="compose",
+            steps=sorted(os.listdir(os.path.join(path, "templates", "steps", "compose"))),
+            subnet6=random_ipv6_subnet()
+        )
 
     @prefix_bp.route("/submit", methods=["POST"])
     @root_bp.route("/submit", methods=["POST"])