DOC - feedback from pull requset 191
FIX: testfail due to Non-ASCII character \xe2
Merge pull request #199 from mekman/add_ref

FIX: testfail due to Non-ASCII character \xe2 in markov.py
Merge pull request #191 from MrBago/fx-assume-normed

DOC - clarify docs for SphHarmModel
RF - rename spherical harmonic bases to be more clear and expose sh-model coefficients as property
BF: corrected lateral problem in test_shm after the rebase
Merge pull request #201 from Garyfallidis/rename-sph-basis-functions

RF - Rename SPH basis functions.
fixed typos in Mic's name as well as mine
reverted a custom python2 fix to the original version
Merge pull request #202 from samuelstjean/typos

Typos
RF: Rename tensor statistics to remove "tensor_" from them.

They are all in the dti module after all.
Merge pull request #203 from arokem/tensor_rename

RF: Rename tensor statistics to remove "tensor_" from them.
NF: new model added for constrained spherical deconvolution and a corresponding test. This is still in progress
TEST updated test for test_csdeconv
cdeconv class returns a fit object
Started example for csd
Updated csd to work with any odf_sphere
TEST updated test2
NF: example with estimated response function from the data added
TEST: added module suite from numpy.testing