Pyvmomi

- Publish new bindings to support vSphere 6.7 Update 3 Release - https://github.com/vmware/pyvmomi/pull/827
- Add sso.py to support get bearer/hok token from sso server - https://github.com/vmware/pyvmomi/pull/828
- pydoc support Fix - https://github.com/vmware/pyvmomi/pull/810
- httpProxy Support Fix - https://github.com/vmware/pyvmomi/pull/799
- Changes to VmomiSupport to handle API versions https://github.com/vmware/pyvmomi/pull/827
- Other changes Fix https://github.com/vmware/pyvmomi/pull/831
- Newer features are available via the new vSphere Automation SDK for Python [here](https://github.com/vmware/vsphere-automation-sdk-python)

- Support JSON encoding for pyVmomi objects PR 732
- Fix vcrpy hardening in test-requirements. Support versions < 2.0
- Delete deprecated Docs folder

- Publish new bindings to support vSphere 6.7 Update 1 Release
- Newer features are available via the new vSphere Automation SDK for Python [here](https://github.com/vmware/vsphere-automation-sdk-python)

- Publish new bindings to support vSphere 6.7
- Newer features are available via the new vSphere Automation SDK for Python [here](https://github.com/vmware/vsphere-automation-sdk-python)
- Fixed issues in first version of 6.7 bindings

Remove sso.py and it's dependencies(lxml and pyOpenSSL) as they don't compatible with certain OS.

* Add sso.py to support get bearer/hok token from sso server
* Fixes 519, 448, 420, 421 Fix SoapAdapter serializer to support serializing unicode chars.
* Fix 487: Remove custom __getattr__ in _HTTPSConnection
* Add user-agent header when connecting to vsphere