basic openstack support

refs #1589, ensure that vmware public key is automaticilly imported when testing connection

audit as twitter and versions for template.

This also closes #1377 as it offer versions and diff view of the tempates.

it is not ideal, but it should handle the most common case for now,
where we should open other feature requests to support all of the ideas in #1377

wip audits upgrade

ensure that you can't delete a compute resource while its used - fixes #1683

fixes #1667 - restrcutre fog extensions code

[EC2] Adds retry on host not available, add some useful debugging.

- debugging, to get the whole message
- add backtrace to compute resource failure msg
- add debug logging for Fog errors on create

when libvirt is not enabled, compute resource provider name is incorrect.

fixes #1597 - Restrict compute resources access by user

And add some rights to give non admin users so they can perform some normal actions on the hosts they own.

unit/domain_parameter_test.rb self-broke... added a tiny fix.
Removing compute_resources/vms nesting, it is such a nightmare for functional tests....

fixed ui for adding and removing ovirt volumes.
when creating a vm from template, if there was an error in the
form. the vm volumes didnot display correctly.
adding and removing volumes in the same submit action did not function well too.

adds ec2 provisioning support fixes #1223

- added progress bar for instance creation
- minor fixes for certname based deployments
- added ssh provisioning support to orchestartion, which utilize finish
scripts by default
- added images support (part of the vm compute tab)...

Compute Resource menu was shown only if libvirt bindings were installed

fixes #1574 - ovirt - add remove and show volumes

• volume and interface ordering is now working
• removed include blank because it is a duplicate of the Blank ovirt-template.
• bootable is disabled when editing a vm, because currently I don't handle volume updates. just add and remove of a volume....

fixes #1452 use fog for libvirt management

This patch introduces a few new features:

• console support
• multiple disks
• multiple nics

first go at vmware integeration refs #955

this patch adds the ability to add a vmware compute resource, and display their console

Add Connection testing for EC2 compute

fixes #1540 added suport for provisioning on ovirt/rhvem using fog.

This patch addes a compute resource concept within foreman

Signed-off-by: Ohad Levy <ohadlevy@gmail.com>