Zabbix

.......PS. [ZBXNEXT-7101] implemented sleep function into JS engine

* commit '7549be27f9b9f1cd6564997a21f67a72c134ce24':
  .......PS. [ZBXNEXT-7101] fixed to accept zero value
  .......PS. [ZBXNEXT-7101] fixed to accept number in string format
  .......PS. [ZBXNEXT-7101] reworked timeout error check
  .......PS. [ZBXNEXT-7101] fixed error check
  .......PS. [ZBXNEXT-7101] added timeout validation
  .......PS. [ZBXNEXT-7101] renamed Sleep() to sleep()
  ........S. [ZBXNEXT-7101] changed msleep() function to method of Zabbix object
  ........S. [ZBXNEXT-7101] implemented sleep function into JS engine