distutils' requires parameter doesn't work with setuptools.  Use
setuptools' instal_requires instead
Set keepalive to 5 seconds in paramiko_ssh.py

This update resolves https://github.com/ansible/ansible/issues/6476.
Allow vault encrypted vars as extra_vars

Forward the vault_password to the yaml file utility.
Respect region_name in nova_compute

Signed-off-by: Oleg Bulatov <oleg@bulatov.me>
Improvements to the rax inventory script
Treat 255 errors from raw as dark host

Any other module is able to detect a dark host, but raw was treating 255
as a return code from the module execution, rather from the connection
attempt. This change allows 255 to be treated as a connection failure
when using the raw module.
Allow you to pass in arbitrary rsync options. I also added help for it, and what version it was added in.
Allow raw and script to support su
mysql_db module now correctly fails on import if bz2 or gz fails.
ssh: Properly check for wrong su password
Added mpdehaan suggestion to use os.path.splitext. Wise suggestion, does look clearner
ssh: propagate prompt to _communicate()

_communicate() uses the prompt variable to detect wrong passwords early,
therefore it needs to be passed to it from exec_command().
ssh connection plugin: Report missing sudo password

If no password is provided, sudo hangs at the prompt. Identify this and
report that the password is missing as an error.
Bugfix, fix crontab commands on HP-UX
If memory not available in syslog.log, catch error, attempt to find it with adb
Output URL for debugging
Make `vpc_security_group` docs more accurate

Without the `subnet` parameter supplied there's an error `msg: Parameter vpc_security_groups invalid for create command`. (This might be a bug?)

If the VPC security group name rather than ID is supplied there's an error: `msg: Invalid security group , groupId= <some group name>, groupName=.` (Accepting a group name might be a feature enhancement.)

In my case I set the subnet as `default` and used `register` to get the result of the security group creation section and just referred to its `group_id` property.
Check for errors from adb, may not work on all systems.
Catch permissions errors related to opening a known_hosts file

Catch permissions errors related to opening a known_hosts file
Added region name to client connection as it is needed for some cloud providers