Revert "salt.cloud: Better multiprocessing handling"

This reverts commit 304751ad265bf38d5a3e0220540afad1258871d3.
Revert "salt.cloud: pep8"

This reverts commit 110a07a4c3ebf24472f2cae6d41ccf358c09b5d4.
Revert "WIP on lxc"

This reverts commit 41649f727fcc9023634fbc0b7af23d686a163760.
LXC managment improvments

- Add functions to the module
- Introduce a new state module to manage lxc containers via salt states
salt.cloud: pep8
salt.cloud: Better multiprocessing handling
salt.cloud: race because of wrong configuration
salt.states.cloud: py3k dict iter
salt.modules.cloud: virtual return name
salt.states.cloud.present: fix mis-use of provider

provider as a special meaning in salt ...
http://docs.saltstack.com/ref/states/providers.html
salt.cloud: race: if misconfiguration, boolean instead of dict