doc: update raspberry pi installation instructions

(wip) do not merge yet

I am still unhappy with the developer installation part. I think we need to explain more clearly when and how to install the developer version. It depends if one would want to develop kivy itself (get via git and install inplace) or just use the dev version right?

doc/sources/installation/installation-rpi.rst

@@ -6,12 +6,37 @@ Installation on Raspberry Pi
 You can install Kivy manually, or you can download and boot KivyPie on the
 Raspberry Pi. Both options are described below.
 
-Note that Kivy has been tested with the original Raspberry Pi Model A/B. No
-guarantee is made that it will work on a Raspberry Pi 2.
+
+Manual installation (On Raspbian Jessie)
+----------------------------------------
+
+#. Install the dependencies::
+
+    sudo apt-get update
+    sudo apt-get install libsdl2-dev libsdl2-image-dev libsdl2-mixer-dev libsdl2-ttf-dev \
+       pkg-config libgl1-mesa-dev libgles2-mesa-dev \
+       python-setuptools libgstreamer1.0-dev git-core \
+       gstreamer1.0-plugins-{bad,base,good,ugly} \
+       gstreamer1.0-{omx,alsa} python-dev cython
 
 
-Manual installation
--------------------
+#. Install Kivy globally on your system::
+
+    sudo pip install git+https://github.com/kivy/kivy.git@master
+
+
+#. Or build and use kivy inplace (best for development)::
+
+    git clone https://github.com/kivy/kivy
+    cd kivy
+    
+    make
+    echo "export PYTHONPATH=$(pwd):\$PYTHONPATH" >> ~/.profile
+    source ~/.profile
+    
+
+Manual installation (On Raspbian Wheezy)
+---------------------------------------
 
 #. Add APT sources for Gstreamer 1.0 in `/etc/apt/sources.list`::
 
@@ -25,8 +50,9 @@ Manual installation
 #. Install the dependencies::
 
     sudo apt-get update
-    sudo apt-get install pkg-config libgl1-mesa-dev libgles2-mesa-dev \
-       python-pygame python-setuptools libgstreamer1.0-dev git-core \
+    sudo apt-get install libsdl2-dev libsdl2-image-dev libsdl2-mixer-dev libsdl2-ttf-dev \
+       pkg-config libgl1-mesa-dev libgles2-mesa-dev \
+       python-setuptools libgstreamer1.0-dev git-core \
        gstreamer1.0-plugins-{bad,base,good,ugly} \
        gstreamer1.0-{omx,alsa} python-dev
 
@@ -39,22 +65,19 @@ Manual installation
 
     sudo pip install cython
 
-#. Clone and compile Kivy::
+#. Install Kivy globally on your system::
+
+    sudo pip install git+https://github.com/kivy/kivy.git@master
+
+#. Or build and use kivy inplace (best for development)::
 
     git clone https://github.com/kivy/kivy
     cd kivy
-
-#. Build and use kivy inplace (best for development)::
-
+    
     make
     echo "export PYTHONPATH=$(pwd):\$PYTHONPATH" >> ~/.profile
     source ~/.profile
 
-#. Or install Kivy globally on your system::
-
-    python setup.py build
-    sudo python setup.py install
-
 
 KivyPie distribution
 --------------------