install: setup.py fix + moved "default" dir in a "sat_templates" dir: the merge request at https://bugs.goffi.org/mr/view/3 was a good basis, but not fully working ("default" dir was removed), this patch fixes it, and do some improvments: - moved "default" in "sat_templates" dir, which correspond to the python module, so it can be found easily from python - added VERSION, and mercurial hash detection, in the same way as for Cagou and backend - slight modification of classifiers - replaces tabs coming from MR by spaces

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sat_templates/default/error/404.html	Sat Jun 02 17:25:43 2018 +0200
@@ -0,0 +1,6 @@
+{% extends 'error/base.html' %}
+
+{% block body %}
+<h1>{% trans %}Not Found{% endtrans %}</h1>
+<p>{% trans %}Sorry, we can't find the resource you are trying to access.{% endtrans %}</p>
+{% endblock body %}