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.