feat(debian) migrate "Installation on Debian based systems

Signed-off-by: Benoit Mortier <benoit.mortier@opensides.be>

source/install/debian/debian-fd-install.rst

+Installing Dependencies
+'''''''''''''''''''''''
+
+All The needed dependancies are resolved by the debian packages
+
+Install the FusionDirectory Repos
+'''''''''''''''''''''''''''''''''
+
+To easily install the latest version, you can install the fusion
+directory repos
+
+Chose the repositories that goes with your Debian version
+
+:ref:`debian-repository-stretch-label`
+
+:ref:`debian-repository-jessie-label`
+
+Create 2 new *.list* file your favorite text editor in */etc/apt/source.list.d*
+
+- One for fusiondirectory
+- One for fusiondirectory-extra
+
+Install FusionDirectory
+'''''''''''''''''''''''
+
+You can then install FusionDirectory by running: 
+
+.. code-block:: shell
+
+   apt-get install fusiondirectory
+   apt-get install fusiondirectory-schema
+
+FusionDirectory Schema Setup
+''''''''''''''''''''''''''''
+
+Now that we have FusionDirectory installed, we need to install the
+FusionDirectory schemas into our LDAP database.
+
+We can easily do this by running:
+
+.. code-block:: shell
+
+   fusiondirectory-insert-schema
+
+You should see the FusionDirectory setup page come up by going to:
+
+http://SERVER-IP/fusiondirectory
+
+
+

source/install/debian/index.rst

+Install FusionDirectory on Debian
+=================================
+
+Install FusionDirectory
+
+.. toctree::
+   :maxdepth: 4
+
+   debian-fd-install.rst

source/install/download.rst

 .. _debian-repository-label:
 
+
 Debian Repository
 '''''''''''''''''
 
+.. _debian-repository-stretch-label:
+
+Debian Stretch
+^^^^^^^^^^^^^^
+
 To use the lastest published version for **stretch** put this in
 your /etc/apt/sources.list
 
@@ -17,6 +23,11 @@ your /etc/apt/sources.list
    deb http://repos.fusiondirectory.org/fusiondirectory-extra/debian-stretch stretch main
 
 
+.. _debian-repository-jessie-label:
+
+Debian Jessie
+^^^^^^^^^^^^^
+
 To use the lastest published version for **jessie** put this in your
 /etc/apt/sources.list
 

source/install/index.rst

@@ -8,4 +8,5 @@ Install FusionDirectory
 
    gpg-keys.rst
    download.rst
+   debian/index.rst
    centos/index.rst