Always return a list even if its empty.
portage: Add support for --changed-use

The `--changed-use` flag is an improvement over `--newuse` because it
does not trigger rebuilds for USE flag changes that would not affect the
installed package. Its use is generally recommended over `--newuse`.

Signed-off-by: Dustin C. Hatch <dustin@hatch.name>
service: use self.changed in service_enable_rcconf().

This sets the "changed" result of the module when a rc file is modified.
Previously only --check mode would show that it was going to change.
Can override each role's install path

Defaults to the system wide `roles-path` when `path` is not specified in the
provided `role-file`.  An example installing nginx to a relative path specified
by the `role-file`.

    - src: https://github.com/bennojoy/nginx
      path: vagrant/roles/
Corrected VM metadata obtention between Abiquo versions
Update playbooks_variables.rst
Fix description on quantum_subnet module
Supporting SSL cert location on SunOS (SmartOS, really)
Handle exceptions during config file parsing

Handle uncaught exceptions during config file parsing
Added null check in case http connection used and no cert found.
Merge pull request #8833 from jhawkesworth/win_facts_powershell_version_and_winrm_cert_expiry_revised

Revised additions to windows facts
Add tests for new windows facts.
This change selects the certificate from the winrm configuration and attempts to find the expiry date from that.
Trond Hindenes pointed out that simply picking the first certificate from local computer certs is not guaranteed to select the correct certificate.
Merge pull request #8847 from jhawkesworth/win_facts_use_cert_from_winrm_configuration

window facts. Select certificate to check for expiry from winrm configuration
Merge pull request #8773 from mrevilme/ec2_fix_instances_list

Always return a list even if its empty.
Merge pull request #8775 from AdmiralNemo/portage-changed-use

portage: Add support for --changed-use
Merge pull request #8788 from eest/service-service_enable_rcconf-changed

service: use self.changed in service_enable_rcconf().
Merge pull request #8789 from retr0h/retr0h/add-role-path-to-role-file

Can override each role's install path
Merge pull request #8801 from danfaizer/devel

Corrected VM metadata obtention between Abiquo versions
Tweaking logical assignment of vm_metadata in abiquo inventory script