Enhancement: Jenkins Integration

- Added configuration parameters to Tox's use of 'nosetests' so it generates the nosetests xml report
  - Py33 generates py33.nosetests.xml (per py33 environment in tox.ini)
  - Py34 generates py34.nosetests.xml (per py34 environment in tox.ini)
  - Other environments if introduced should genenerate nosetests.xml (per setup.cfg)
- Added configuration parameters for nosetests to generate the 'coverage xml' report in the same manner