Zabbix

....I..PS. [ZBX-20001] fixed crash and invalid bytecode error being generated on big-sendian systems when javascript is used; upgraded duktape to version 2.6

Merge in ZBX/zabbix from feature/ZBX-20001-5.0 to release/5.0

* commit 'cf9e1150ab0f8a5c6553db6526ec6a1327a69f22':
  .D........ [ZBX-20001] added ChangeLog entry
  .......PS. [ZBX-20001] fixed crash and invalid bytecode being generated on big-endian systems
  .......PS. [ZBX-20001] upgraded duktape to version 2.6 and removed forced DUK_F_OLD_SOLARIS define