proper tomcat package is used to restart

test_install.sh

@@ -19,7 +19,21 @@ chmod 0755 /usr/sbin/policy-rc.d
 bash <(curl -s https://minerva.pages.uni.lu/doc/scripts/install.sh)
 
 mv /usr/sbin/policy-rc.d.backup /usr/sbin/policy-rc.d
-service tomcat8 start
+
+TOMCAT_PACKAGE="";
+TOMCAT7_OK=$(dpkg-query -W --showformat='${Status}\n' tomcat7|grep "install ok installed")
+TOMCAT8_OK=$(dpkg-query -W --showformat='${Status}\n' tomcat8|grep "install ok installed")
+if [ "$TOMCAT7_OK" != "" ];
+then
+  TOMCAT_PACKAGE='tomcat7'
+fi
+if [ "$TOMCAT8_OK" != "" ];
+then
+  TOMCAT_PACKAGE='tomcat8'
+fi
+
+
+service $TOMCAT_PACKAGE start
 #we need to wait a bit for tomcat start
 sleep 15
 wget http://localhost:8080/minerva/