Allow specifying the deploy value from the `vm` profile.

Now, the `vm` deploy value is grabbed initially from the `vm` profile, and if not set, grab the value from `__opts__`.
Allow setting `delvol_on_destroy` for **all** EC2 VMs. PEP-8.
Merge pull request #409 from s0undt3ch/features/provider-volume-delete-support

Allow setting `delvol_on_destroy` for **all** EC2 VMs. PEP-8.
Merge pull request #408 from s0undt3ch/hotfix/grab-deploy-from-vm

Allow specifying the deploy value from the `vm` profile.