Initial Import

- Initial import of RCBU API from the Cloud Backup Support Tools SDK
--- Foreign Commit Hash cf3c6603abc0b9bf2a1affae27f603b2bca3846b
- changed all references of 'rcbu' to 'cloudbacku'
- changed all references of 'RCBU' to 'Rackspace Cloud Backup'
--- Exception is the HTTP User-Agent data which still uses RCBU
Updates

- Pep8 Compliance
- Better test configuration
- Updated package configuration
Note: there are still zero tests written