seperate routes, provide robust handler types, use mux

server/assets/pages/delete_user.tmpl

@@ -1,13 +0,0 @@
-{{ define "user" }}
-<div class="padded box mono">
-    <div class="box-title">
-        <i class="mdi mdi-account-remove"></i> deleting user {{ .SelectedUser.Name }}
-    </div>
-    <div class="text-right">
-        are you sure?
-    </div>
-    <form action="/admin/delete_user_do?user={{ .SelectedUser.Name }}" method="post">
-        <input type="submit" value="yes">
-    </form>
-</div>
-{{ end }}