Add notifications

Fixes #28

app/templates/base.html

@@ -40,6 +40,7 @@
 		</ul>
 		<ul class="nav navbar-nav navbar-right">
 			{% if current_user.is_authenticated %}
+				<li><a href="{{ url_for('notifications_page') }}">({{ current_user.notifications | length }})</a></li>
 				<li><a href="{{ url_for('user_profile_page', username=current_user.username) }}">{{ current_user.display_name }}</a></li>
 				<li><a href="{{ url_for('user.logout') }}">Sign out</a></li>
 			{% else %}

app/templates/notifications/list.html

@@ -0,0 +1,17 @@
+{% extends "base.html" %}
+
+{% block title %}
+Notifications
+{% endblock %}
+
+{% block content %}
+	<ul>
+		{% for n in current_user.notifications %}
+			<li><a href="{{ n.url }}">
+				{{ n.title}} [{{ n.causer.display_name }}]
+			</a></li>
+		{% else %}
+			<li><i>No notifications</i></ul>
+		{% endfor %}
+	</ul>
+{% endblock %}