Add error pages

templates/400.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+
+{% load i18n %}
+
+{% block content %}
+    <h1>{% trans "Bad request" %}</h1>
+    {% blocktrans %}Sorry, your request was bad. Don't know what could be wrong. An email has been sent to webmasters with the details of the error. You can now drink a coke.{% endblocktrans %}
+{% endblock %}

templates/403.html

@@ -0,0 +1,13 @@
+{% extends "base.html" %}
+
+{% load i18n %}
+
+{% block content %}
+    <h1>{% trans "Permission denied" %}</h1>
+    {% blocktrans %}You don't have the right to perform this request.{% endblocktrans %}
+    {% if exception %}
+        <div>
+            {% trans "Exception message:" %} {{ exception }}
+        </div>
+    {% endif %}
+{% endblock %}

templates/404.html

@@ -0,0 +1,13 @@
+{% extends "base.html" %}
+
+{% load i18n %}
+
+{% block content %}
+    <h1>{% trans "Page not found" %}</h1>
+    {% blocktrans %}The requested path <code>{{ request_path }}</code> was not found on the server.{% endblocktrans %}
+    {% if exception != "Resolver404" %}
+        <div>
+            {% trans "Exception message:" %} {{ exception }}
+        </div>
+    {% endif %}
+{% endblock %}

templates/500.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+
+{% load i18n %}
+
+{% block content %}
+    <h1>{% trans "Server error" %}</h1>
+    {% blocktrans %}Sorry, an error occurred when processing your request. An email has been sent to webmasters with the detail of the error, and this will be fixed soon. You can now drink a beer.{% endblocktrans %}
+{% endblock %}