BF: minor fixes around for tests to pass in daily_tests
BF: fixing Dataset doctest for numpy 1.7 changes on how .base are defined

it might fail with earlier numpys but we do our daily tests with more or less recent numpy
BF(PY3): BinaryClassifier - do not convert labels list to set and back to list
BF(PY3): there is no 'classes' in our suite_stats() for python3 -- only 'types'
BF(PY3): test_collections -- make comparisons robust for python3
Merge branch 'master' of github.com:PyMVPA/PyMVPA

* 'master' of github.com:PyMVPA/PyMVPA:
  Update publications.
  DOC: Add a note on workshops