[vsphere] allow to create a vm with multiple disks.

unitNumber has to be unique.
[docs::aws::storage] added [] to make it pretty
[docs::aws::storage] yard doc syntax fix
[docs::aws::storage] reformatted copy_object
Merge pull request #1433 from westonplatter/aws_docs

[docs::aws::storage] fixed some syntax and formatted a request
[docs::aws::storage] reformatted delete requests
Merge pull request #1437 from ohadlevy/vsphere-multi-disk

[vsphere] allow to create a vm with multiple disks.
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
[docs::aws::storage] standardized return format
  for key with values,
    # @return variable [data_type]:
  for values,
    # * variable [data_type] - description of value
[docs::aws::storage] WIP on get requests
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
Merge pull request #1439 from epdejager/aws_storage_mock_fix

Aws storage mock fix
[docs::aws::storage] finished formatting get requests
Merge branch 'master' of git://github.com/fog/fog
Merge pull request #1443 from westonplatter/master

[docs::aws::storage] rdoc to yard formatted all get requests