Merge branch '254_debian_package' into 'devel_11.0.x'

when sym link to minerva exists installation is not broken

See merge request piotr.gawron/minerva!153

debian/template/postinst

@@ -64,7 +64,7 @@ case "$1" in
 #availble when new war is deployed from debian package, so tomcat will catch SQL exception and stop deployment
     invoke-rc.d $TOMCAT_PACKAGE stop || true
     rm -rf /var/lib/$TOMCAT_PACKAGE/webapps/minerva
-    ln -s /usr/share/minerva/minerva.war /var/lib/$TOMCAT_PACKAGE/webapps/minerva.war 
+    ln -sf /usr/share/minerva/minerva.war /var/lib/$TOMCAT_PACKAGE/webapps/minerva.war
     invoke-rc.d $TOMCAT_PACKAGE start
     ;;
     *)