Release version 0.70
This release brings a slew of updates and new functionality including a new user facing, simplified API.
Changes:
- New user facing API - #14
- Native SSH tunneling support. Removes the need for ProxyCommand to be set in ~/.ssh/config and no longer uses the 'ssh' binary to perform tunelling. #12
- Allow for overriding timeout setting of SSH clients - #16
- In tests, the python 2.6 target has been re-enabled to ensure python 2.6 support is not broken without realising.
- Many more tests, documentation updates and cleanup