Add inkscape to fix SVGs in PDFs

Fixes #243

(c) Copyright IBM Corp. 2016

minimal-notebook/Dockerfile

@@ -24,6 +24,7 @@ RUN apt-get update && apt-get install -yq --no-install-recommends \
     texlive-fonts-recommended \
     texlive-generic-recommended \
     libxrender1 \
+    inkscape \
     && apt-get clean && \
     rm -rf /var/lib/apt/lists/*