[docs::aws::storage] reformatted delete requests
Merge pull request #1436 from westonplatter/master

[docs::aws::storage] reformatted fog/aws/storage/requests delete
adding support for rackspace loadbalancer content caching
Merge pull request #1438 from luizfar/add_content_caching_to_load_balancer

adding support for rackspace loadbalancer content caching
Added a cors (with bucket) item to the data has of the Storage AWS Mock class (upon creation of the hash). This is to prevent put_bucket_cors from failing during tests.
Added a test for put_bucket_cors to make sure it runs in a test (mock) scenario