Simple session management sample.

We demonstrate some basic here's the session ID
and here's how to look at sessions on the vCenter
if your permissions are broad enough.

Related to: https://github.com/vmware/pyvmomi/issues/128
Merge pull request #114 from hartsock/master

Simple session management sample.
Merge pull request #116 from hartsock/master

Simple session management sample.
Simple logging work-around

Here's an example of a simple work-around that will allow
you to log a pyvmomi HTTP conversation using VCR.