SE-133 integration tests - shutdown openbis server only if it is still running

SVN: 12768

integration-tests/common.bash

@@ -436,6 +436,10 @@ function install_datamovers {
 
 function restart_openbis {
     assert_dir_exists_or_die $OPENBIS_SERVER
+    if [ "`check_server_port`" != "" ]; then
+    	# maybe server is just closing, wait a moment
+    	sleep 5
+    fi
     if [ "`check_server_port`" != "" ]; then
     	echo Shutting down openbis server.
 	    shutdown_openbis_server