adds admin page

admin users must have role admin (which must currently be set
manually via database)

app/templates/admin.html

@@ -0,0 +1,5 @@
+{% extends "layout.html" %}
+
+{% block body %}
+			Admin
+{% endblock %}

app/templates/layout.html

@@ -2,7 +2,9 @@
 	{% if current_user.email %}
 		<li><a href='{{ url_for('create_pit_stop_form') }}'>Create Pitstop</a></li>
 		<li><a href='{{ url_for('get_statistics') }}'>Statistics</a></li>
-		<li><a href='{{ url_for('get_manual') }}'>Manual</a></li>
+		{% if current_user.has_role('admin') %}
+			<li><a href='{{ url_for('get_admin_page') }}'>Admin</a></li>
+		{% endif %}
 		<li><a href='{{ url_for('security.logout') }}'>Logout</a></li>
 	{% else %}
 		<li><a href='{{ url_for('security.login') }}'>Login</a></li>