ENH: better names for variables
Merge pull request #1441 from kuantkid/fix_spectral_test

Fix spectral embedding related tests
What's new: added :class: keyword
FIX: convert predictions into a numpy array
FIX: docstring tests
Merge pull request #1445 from glouppe/tree-shape

MRG: Simplify the shape of (n_)classes_ for single output trees/forests
What's new: typo
Display the test names to understand which test is triggering the segfault on jenkins
COSMIT some fixes in whatsnew rst
FIX manifold example - sorry, my bad.
COSMIT RST in manifold sphere example.
ENH fix random seed in manifold example
ENH Nystroem kernel approxmation
ENH renamed class NystromKernelApproximation to Nystrom (it is in the kernel_approximation module). Also improvements to example docstring
DOC docstrings for Nystroem.
ENH cosmit, gamma defaults do None, not 0. address some of @mblondel's comments.
ENH tests for Nystrom, check that n_components is smaller than n_samples.
DOC added note in example that digits data is to small.
DOC narrative doc for Nystroem.
DOC updated whatsnew with Nystroem.