Added Gitter badge
Update README.md
Merge pull request #199 from gitter-badger/gitter-badge

Add a Gitter chat badge to README.md
Load balancer and data center support work
Add methods to driver
Fixes for datacenter -> data_center and removed node attributes call
Merge pull request #196 from opscode/load_balancer

Load balancer and data center support work
Support for resources that are backed by data bags
Merge pull request #205 from opscode/databag_resource

Support for resources that are backed by data bags
require data bag resources
Merge pull request #208 from opscode/require-data-bag-resources

Require data bag resources
Rename to chef-provisioning
Bump revision to 0.15
Load chef_metal/driver_init if provisioning isn't found
Add back chef_metal run context for backcompat
Move ChefProvisioning to Chef::Provisioning
Remove extra files
Move LoadBalancer stuff to chef-provisioning