Add initial templates for user login and blog post entry.

lib/_users/login.tpl

@@ -0,0 +1,13 @@
+%{
+get_user
+if(! ~ $#logged_user 0)
+    echo 'You are logged in as' $logged_user
+if not if (~ $REQUEST_METHOD POST)
+    echo 'Login failed!'
+
+%}
+<form method="POST">
+    User name: <input type="text" name="user_name" /><br />
+    User password: <input type="password" name="user_password" /><br />
+    <input name="s" type="submit" value="Login" />
+</form>