Added debuild for Build.PL
Added Zabbix::API::Graph url function to retrive graph url
Documentation updates

This commit adds some documentation on how to create new hosts on
the Zabbix server.
Debian changelog release 0.005
debian control file
Printing Zabbix API version in fetch all hosts  example script
Overrided delete method for Host, Proxy and User cause it's need prefixed object id in json query
Added new HostInterface class to allow multiple Zabbix Host's interfaces feature introduced in Zabbix 2.0
Rebased