Add a README with basic installation instructions

README

@@ -0,0 +1,38 @@
+The COIN project
+================
+
+`Coin` is Illyse's Information System, designed to managed subscribers.
+
+It is written in Django, and makes an heavy use of LDAP (for
+authentication, and to store configuration information).
+
+It currently only works with python2, because `python-ldap` is (as of
+2013) not compatible with python3.
+
+
+Installation
+============
+
+Get yourself a virtualenv. On Debian, install `python-virtualenv`. On
+Archlinux, the package is called `python2-virtualenv`, and you must
+replace the `virtualenv` command with `virtualenv2` in the following.
+
+To create the virtualenv (the first time):
+
+  virtualenv ~/tmp/venv-illyse
+
+
+To activate the virtualenv (you need to do this each time you work on
+the project):
+
+  . ~/tmp/venv-illyse/bin/activate
+
+
+Install dependencies. On Debian, you will probably need the
+`python-dev`, `libldap-dev` and `libsasl2-dev` packages. Then run:
+
+  pip install -r requirements.txt
+
+
+You should now be able to run `python manage.py` (within the
+virtualenv, obviously) without error.