Allow explicit interface specification for multi-homed hosts

Allow the user of the cookbook to specify which interface IP to use for
creating the Zabbix host entry's "interfaces" list. I.e., the interface
that the host will be polled on once it is registred.
Merge branch 'specify-interface-ip' into bb-mega-merge
Fix typo in variable assignment for ip_address
Merge branch 'specify-interface-ip' into bb-mega-merge
Added files and templates for Orabbix
Add initial recipe and template file - work in progress.
Merge branch 'orabbix-support' into bb-mega-merge
Fix typo
Merge branch 'orabbix-support' into bb-mega-merge
Use string interpolation instead
Merge branch 'orabbix-support' into bb-mega-merge
Remove orabbix stuff as that is going into its own cookbook