DOC transfered wiki to sphinx-doc

* changed structure of index-file
* copied the WIKI at commit 67601b2d33f5a3cf8e9633e6ad92cca286840680
* adapted the markdown to rst

doc/user/dependencies.rst

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+************
+Dependencies
+************
+
+Fedora
+------
+
+Fortunately everything is on Fedora repositories.
+
+::
+
+    # yum install python-imaging pyserial pyusb python-qrcode
+
+Ubuntu
+------
+
+Ultimately, this instructions also apply to Raspbian, in case you are
+interested to install python-escpos on your Raspberry with Raspbian.
+
+Install the packages available on distro repositories.
+
+::
+
+    # apt-get install python-imaging pyserial
+
+The packages which are not available at Ubuntu repositories need to be
+installed manually.
+
+pyusb
+^^^^^
+This is the python binding to libusb-1.0 
+
+* Get the latest tarball from `sourceforge <http://sourceforge.net/projects/pyusb/files/PyUSB%201.0/>`__
+* Build and install it
+
+::
+
+    # tar zxvf pyusb-1.*.tar.gz
+    # cd pyusb-1.*
+    # python setup.py build
+    # sudo python setup.py install
+
+python-qrcode
+^^^^^^^^^^^^^
+
+This is the python module to generate QR Codes
+
+* Checkout the latest code from `github <https://github.com/lincolnloop/python-qrcode>`__
+* Build and install it
+
+::
+
+    # git clone https://github.com/lincolnloop/python-qrcode
+    # cd python-qrcode
+    # python setup.py build
+    # sudo python setup.py install
+