Creating node[:zabbix][:external_dir] directory, since it will be used later in some recipes of this cookbook
Merge branch 'fix/create_zabbix_external_dir'
Added MongoDB monitoring feature
Merge branch 'feature/add_mongodb_monitoring'
Added Test Kitchen and Berkshelf to make the cookbook testable and more easier to manage
Merge branch 'feature/add_test_kitchen_and_berkshelf'