Rename the config dir to setup

setup/templates/steps/flavor.html

@@ -0,0 +1,16 @@
+{% call macros.panel("info", "Step 1 - pick a flavor") %}
+<p>Mailu comes in multiple "flavors". It was originally
+designed to run on top of Docker Compose but now offers multiple options
+including Docker Stack, Rancher, Kubernetes.</p>
+<p>Please note that "official" support, that is provided by the most active
+developpers, will mostly cover Compose and Stack, while other flavors are
+maintained by specific contributors.</p>
+
+<div class="radio">
+  {{ macros.radio("flavor", "compose", "Compose", "simply using Docker Compose manager") }}
+  {{ macros.radio("flavor", "stack", "Stack", "using stack deployments in a Swarm cluster") }}
+  {{ macros.radio("flavor", "rancher", "Rancher", "on top of the Rancher container manager") }}
+  {{ macros.radio("flavor", "kubernetes", "Kubernetes", "on top of the Kubernetes container manager") }}
+</div>
+
+{% endcall %}