TST: replicating repeatedmeasure issue for #117
DOC+BF: fixed doctest by adding necessary imports and removal of erroneous ">>> ..." line prefixes
NF: surf_unproject_weights_nodewise as the inverse to surf_project_weights_nodewise
PY3: integer division compatibility
Merge branch 'master' of https://github.com/PyMVPA/PyMVPA