Docs: Install documentation for k4ever and barcode-plugin

k4ever/docs/install.rst

@@ -24,7 +24,7 @@ Webserver Configuration
 ```````````````````````
 In this example configuration we will use apache2 + mod_wsgi, but there are
 many other choices. These are described in Django's docs at `deploying Django
-<https://docs.djangoproject.com/en/dev/howto/deployment/>_`.
+<https://docs.djangoproject.com/en/dev/howto/deployment/>`_.
 
 k4ever has static files which should be served by the webserver directly, so
 be sure this happens for the media/ directory.
@@ -60,7 +60,7 @@ Configuration
 `````````````
 Copy over the settings.py.template to settings.py. You can edit all the
 settings fitting to your needs. Most of them are django switches, documented
-`here <https://docs.djangoproject.com/en/dev/topics/settings/>_`. Some of them
+`here <https://docs.djangoproject.com/en/dev/topics/settings/>`_. Some of them
 are k4ever specific and have some inline documentation.
 
 The **SECRET_KEY** variable has to be set by you. Just set it to something long
@@ -78,3 +78,45 @@ cause a *git pull* to fail, just put them in your settings.py and they will
 get overridden.
 
 
+Barcode-Client
+--------------
+The Barcode-Client is an interface to k4ever which can run on a dedicated
+computer/laptop.
+
+
+Dependencies
+````````````
+ - python
+ - simplejson
+ - a terminal
+
+
+Configuration
+`````````````
+You'll need a user/password combination in k4ever, so go to k4ever's admin
+page and add a new user which is member of the *Plugin* group. Additionally
+you need an entry for the Barcode-Reader to appear on the settings page.
+All this can be accomplished by calling the *install.py* with the path
+to your k4ever django installation::
+
+	python install.py ../k4ever/
+
+At this point the Barcode-Client has no configuration file. All you have to do
+is to set three environment variables according to your setup::
+
+	export BARCODE_PLUGIN_USER=yourpluginuser
+	export BARCODE_PLUGIN_PASS=yourpluginpass
+	export BARCODE_PLUGIN_URL=https://path-to.your/api2/
+
+Afterwards you can start the Barcode-Client with *python freitagskasse.py*.
+
+If you have a Barcode-Scanner: Normally barcodescanners just act as a normal
+keyboard. Just let it type the barcodes into the Barcode-Client and everything
+should work.
+
+If you have a RFID-Reader: Most RFID-Cards have an ID which can be used to 
+authenticate against k4ever. A user needs to take this ID and put it in the
+authblob section. For an RFID_Reader to work with k4ever you can use the
+*rfid_keypresser.py*, which reads all input from the reader and translates
+them to X keypresses.
+