Zabbix

 - speed improvement for Overview screens (Eugene)
 - developed 'net.if.total[*]' parameter (Eugene)
 - fixed new map link adding (Eugene)
 - fixed host group adding (Eugene)
 - fixed map displaying (Eugene)
 - fixed 'No permissions' for 'Latest data','Triggers','Alarms' screens (Eugene)
 - fixed permision deletion (Eugene)
 - fixed 'get_map_by_sysmapid' function calls(Eugene)
 - improved php code execution speed (Eugene)