Removing chef from rubix
Bumping to 0.5.14 to remove bad dependency
added and fixed some error messaging
Merge branch 'master' of github.com:infochimps-labs/rubix
host_group integration specs work
middle of zabbix 2.0
Merge branch 'zabbix-2.0' into zabbix2

Conflicts:
	lib/rubix/models/host.rb
	lib/rubix/models/host_group.rb
	spec/requests/host_request_spec.rb
	spec/support/integration_helper.rb
Move database logic to database_helper, add postgresql and mysql support