new link for CGAL-4.2-beta1

Dockerfile

@@ -27,7 +27,7 @@ ENV CGALDIR="CGAL-4.2-beta1"
 
 ###CGAL-4.2###
 WORKDIR /opt/
-RUN wget https://gforge.inria.fr/frs/download.php${CGALN}${CGALFILE}
+RUN wget http://134.100.28.207/files/src/cgal/${CGALFILE}
 RUN tar xvf ${CGALFILE}
 RUN rm ${CGALFILE}