ENH: a usecase test for chaining mapper and a cross validation
Merge branch 'master' of github.com:PyMVPA/PyMVPA

* 'master' of github.com:PyMVPA/PyMVPA:
  DOC+BF: Silence doctest error in unfinished tutorial part.
NF: surf.face2edge_length
BF: remove printing of intermediate output in face2edge_length
BF: use start/stop/steps in voxel selection wrapper function
ENH: for fresh ipythons add completions for keys of collections
ENH: volgeom now allows a string as mask argument, indicating that the corresponding feature attribute should be used in contructing the mask
return float32 dtype for volgeom mask
BF: volgeom.masked_nifti_img processes number of time points correctly now
NF: surf.average_node_edge_length
ENH: disabling interpolation for plot_distance_matrix
quick ugly hack to get inverse of MNI2Tal based on good old Matthews non-linear transformation
Merge pull request #99 from wzinke/no_interpolation

ENH: disabling interpolation for plot_distance_matrix
NF: added surface and volgeom properties to volsurf
Merge branch 'master' of https://github.com/PyMVPA/PyMVPA into _tent/surface_searchlight
NF: volgeom ijk2triples and triples2ijk
BF: to prevent bugs with ucasing+unicode -- flag in capital sfor ctypes

Thanks to Ceyhun Çakar for troubleshooting
DOC: Update contributor list
ENH: moved afni and i/o specific stuff from misc.surfing to support.{nibabel,afni}
Merge branch 'master' of https://github.com/PyMVPA/PyMVPA into _tent/surface_searchlight