Get-Zone done

Get-Zone is completed; other DNS-related code is coming.
DNS examples v1 are ready

First version of .NET DNS-related sample code are ready.
Moved Create Provider method

Moved the Create Provider method to the authentication sample and
removed that step from the other samples.
.NET examples formatted to fit code window

Some (many, actually) .NET code examples were wrapping within the code
div on the page, resulting in breaks in the middle of variable names,
etc.
Merge remote-tracking branch 'upstream/dev' into cloud-dns

Conflicts:
	src/docs/auto-scale/getting-started/samples/delete_scaling_webhook.rst
	src/docs/auto-scale/getting-started/samples/get_scaling_group_details.rst
	src/docs/auto-scale/getting-started/samples/get_scaling_webhook_details.rst
	src/docs/auto-scale/getting-started/samples/list_scaling_webhooks.rst
	src/docs/auto-scale/getting-started/samples/update_scaling_policy.rst
	src/docs/auto-scale/getting-started/samples/update_scaling_webhook.rst
	src/docs/cloud-block-storage/getting-started/samples/create_volume.rst
	src/docs/cloud-block-storage/getting-started/samples/show_snapshot.rst
	src/docs/cloud-dns/getting-started/samples/authentication.rst
	src/docs/cloud-dns/getting-started/samples/create_record.rst
	src/docs/cloud-dns/getting-started/samples/create_zone.rst
	src/docs/cloud-dns/getting-started/samples/delete_record.rst
	src/docs/cloud-dns/getting-started/samples/delete_zone.rst
	src/docs/cloud-dns/getting-started/samples/get_record.rst
	src/docs/cloud-dns/getting-started/samples/get_zone.rst
	src/docs/cloud-dns/getting-started/samples/modify_record.rst
	src/docs/cloud-dns/getting-started/samples/modify_zone.rst
	src/docs/cloud-files/getting-started/samples/get_object_sdk.rst
	src/docs/cloud-load-balancers/getting-started/samples/authentication.rst
	src/docs/cloud-load-balancers/getting-started/samples/create_lb.rst
	src/docs/cloud-load-balancers/getting-started/samples/set_throttling.rst
Merge pull request #614 from DonSchenck/cloud-dns

Many code formatting changes to match web page contraints
Merge pull request #619 from rackerlabs/dev

Pushing to production after reviewing on staging