Ensure that node modules can be installed

The target folder for node modules as required by the
ID service does not necesarily belong to the user running
vagrant. Make sure to set ownership appropriately.

Signed-off-by: Wolfgang Mauerer <wolfgang.mauerer@oth-regensburg.de>

integration-scripts/install_codeface_node.sh

@@ -6,6 +6,8 @@ echo "Providing id_service"
 
 sudo DEBIAN_FRONTEND=noninteractive apt-get -qqy install npm
 cd id_service
+sudo mkdir node_modules
+sudo chown vagrant.vagrant node_modules
 npm set ca null
 npm install --no-bin-links
 cd ..