Add more default CA paths

Added the default CA path for Mac OSX as well as the bundled
CA pem that comes with the requests module.

Change-Id: Icb202e04de48b75c43b5ce183e55d2e9e44f72b4
Closes-Bug: #1266581
python-heatclient stack-abandon support

Adding stack-abandon support for python-heatclient.

Partial-Bug: #1262267
Change-Id: Ifaec08558103137fe8288d00ba8d7188f01afe03
Merge "Add more default CA paths"