title: Error running kitchen_sink.py after installing kivyMD (kivy material design)
body: <p>My problem is on the title 
  I have installed kivy-garden and kivy and recycleview using theses commands:</p>
  
  <p>pip install kivy-garden
  garden install recycleview</p>
  
  <p>Thanks for your help !</p>
  
  <p>Here's the TraceBack :</p>
  
  <pre><code>    [INFO              ] [Logger      ] Record log in C:\Users\ouifa\.kivy\logs\kivy_16-06-17_1.txt
  [INFO              ] [Kivy        ] v1.9.1
  [INFO              ] [Python      ] v3.4.3 (v3.4.3:9b73f1c3e601, Feb 24 2015, 22:43:06) [MSC v.1600 32 bit (Intel)]
  [INFO              ] [Factory     ] 179 symbols loaded
  [INFO              ] [Image       ] Providers: img_tex, img_dds, img_gif, img_sdl2 (img_pil, img_ffpyplayer ignored)
  [INFO              ] [OSC         ] using &lt;thread&gt; for socket
  [INFO              ] [Window      ] Provider: sdl2
  [INFO              ] [GL          ] GLEW initialization succeeded
  [INFO              ] [GL          ] OpenGL version &lt;b'4.4.0 - Build 10.18.15.4279'&gt;
  [INFO              ] [GL          ] OpenGL vendor &lt;b'Intel'&gt;
  [INFO              ] [GL          ] OpenGL renderer &lt;b'Intel(R) HD Graphics 520'&gt;
  [INFO              ] [GL          ] OpenGL parsed version: 4, 4
  [INFO              ] [GL          ] Shading version &lt;b'4.40 - Build 10.18.15.4279'&gt;
  [INFO              ] [GL          ] Texture max size &lt;16384&gt;
  [INFO              ] [GL          ] Texture max units &lt;32&gt;
  [INFO              ] [Shader      ] fragment shader: &lt;b"WARNING: 0:6: '' :  #version directive missing"&gt;
  [INFO              ] [Shader      ] vertex shader: &lt;b"WARNING: 0:6: '' :  #version directive missing"&gt;
  [INFO              ] [Window      ] auto add sdl2 input provider
  [INFO              ] [Window      ] virtual keyboard not allowed, single mode, not docked
  [INFO              ] [Text        ] Provider: sdl2
   Traceback (most recent call last):
     File "C:\Users\ouifa\Desktop\KivyMD-master-287939089331bd9c6570fdeaa482901c679c85b8\kitchen_sink.py", line 15, in &lt;module&gt;
       from kivymd.dialog import MDDialog
     File "C:\Users\ouifa\Desktop\KivyMD-master-287939089331bd9c6570fdeaa482901c679c85b8\kivymd\dialog.py", line 8, in &lt;module&gt;
       from theming import ThemableBehavior
   ImportError: No module named 'theming'
  </code></pre>