Merge pull request #50 from RiotGames/zabbix_api

Zabbix cookbook, this is a first pass at the zabbix_api implementation
recipe is now common
split some specific task from common into server_common and agent_common
remove a mysterious file :)
Merge pull request #53 from Youscribe/seemstobeanoops

remove a mysterious file :)
Merge pull request #52 from Youscribe/split_common

Split common
Clean nginx recipe
change attributes name for php
Merge pull request #51 from Youscribe/enhance_nginx_web

Cleanup nginx recipe
Merge branch 'zabbix_api' of github.com:RiotGames/zabbix into zabbix_api