Make it easier to determine whether instance creation or tagging fails

BUGFIX: route53 module won't round-trip * and @ in records

Fix for #6365: cloudformation module fails to update if stack exists

Returning 'NA' when no virtualization found

Added modules to manage ec2 autoscaling groups

Update apt module so that environment variables are set correctly since not going through shell.  Very sorry folks, it will be addressed.

Document the module_lang option.

ad-hoc doc fixes

Closes #6169.

Add BSD license to module_utils/gce.py

* Adds another module utility file which generalizes the
  access of urls via the urllib* libraries.
* Adds a new spec generator for common arguments.
* Makes the user-agent string configurable.

Fixes #6211

* Adds another module utility file which generalizes the
  access of urls via the urllib* libraries.
* Adds a new spec generator for common arguments.
* Makes the user-agent string configurable.

Fixes #6211

Fixes #6331

tags lists are properly uniqued and joined now, also avoids type issues when passed as list/set or strings

Signed-off-by: Brian Coca <briancoca+ansible@gmail.com>

Fixes #6047