CLOUDSTACK: Add ex_list_nics, ex_attach_nic_to_vm, ex_detach_nic_from_vm + tests

Signed-off-by: Sebastien Goasguen <runseb@gmail.com>

This closes #369
Cloudstack: Implemented VPC network acls and tests

Signed-off-by: Sebastien Goasguen <runseb@gmail.com>

This closes #371
Fixed some typos in the code and docs

Closes #381

Signed-off-by: Tomaz Muraus <tomaz@apache.org>
Fix typo in the changelog.
Fixed another two typos

Closes #383

Signed-off-by: Tomaz Muraus <tomaz@apache.org>
Merge pull request #2 from apache/trunk

Pull 2