Enable init cells in descriptor role

Dockerfile

@@ -162,7 +162,8 @@ ARG TUTORIALS_HOME=$HOME/tutorials
 # Linking all the notebooks of the tutorials
 WORKDIR $TUTORIALS_HOME
 RUN ln -s /opt/tutorials/*/*.ipynb . \
- && jupyter-trust tcmi.ipynb
+ && jupyter-trust tcmi.ipynb \ 
+ && jupyter-trust descriptor_role.ipynb
 
 
 # Linking images or other assets may required by the tutorials

analytics-descriptor-role @ 122b6409

-Subproject commit 6b5b53643ad2230fe929566d24a8ec69e2c815a4
+Subproject commit 122b6409cf48ad4924f91a71ad47565294817e7f