Zabbix

A.F....... [ZBX-17419] optimized API queries when searching through names in hosts and items tables

* commit 'b9f716a451998c0be23079e3bd6fed1791335dae':
  ..F....... [ZBX-17419] improved code style
  A......... [ZBX-17419] modified removing of name_upper from API results using unsetExtraFields()
  ..F....... [ZBX-17419] modified check for presence of name_upper column to look at database instead of schema definition

(cherry picked from commit 4e8621c23c2868926267b2c5d3482d49a75e663e)

-	ui/include/classes/api/services/CProxy.php