move everything (except config) in one file

templates/base.html

@@ -0,0 +1,19 @@
+{% extends "bootstrap/base.html" %}
+
+{% block title %}Prolefeeder{% endblock %}
+{% block content %}
+<div class="container">
+
+{% with messages = get_flashed_messages() %}
+{% if messages %}
+    {% for message in messages %}
+    <div class="alert alert-info" role="alert">{{ message }}</div>
+    {% endfor %}
+{% endif %}
+{% endwith %}
+
+{% block app_content %}
+{% endblock %}
+
+</div>
+{% endblock %}