Merge pull request #1 from vmware/master

merge from master
renamer sample demonstrates working with tasks

Shows how the rename invocation emits a task and how pyVmomi updates
the task in the background.
Merge branch 'master' of github.com:hartsock/pyvmomi-community-samples
ignore .orig files
Merge branch 'master' of github.com:vmware/pyvmomi-community-samples
PowerOn_Task and AnswerVM demo

Demonstrates how to deal with a PowerOn_Task that's interrupted by
the need for an AnswerVM call.
Merge pull request #58 from hartsock/power_on

power_on a VM and how to deal with a VM question