workaround for old ubuntu

Author: Serghey Rodin

install/vst-install-ubuntu.sh

@@ -871,6 +871,7 @@ if [ "$phpfpm" = 'yes' ]; then
     pool=$(find /etc/php* -type d \( -name "pool.d" -o -name "*fpm.d" \))
     wget $vestacp/php-fpm/www.conf -O $pool/www.conf
     php_fpm=$(ls /usr/sbin/php*fpm* |cut -f 4 -d /)
+    ln -s /etc/init.d/$php_fpm /etc/init.d/php-fpm > /dev/null 2>&1
     update-rc.d $php_fpm defaults
     service $php_fpm start
     check_result $? "php-fpm start failed"