NF: two new functions in odf.py as well as suggestions for improving the CsaOdfModel DIPY example
wip
wip
added csa_odf_example_gfa_sh.py to highlight the problem with the csa odf model sh coefficients and gfa computed from it
added csa_odf_example_fulldata, to again highlight the problem of the csa odf
RF - working on odf display examples
BF - replace `odf_remove_negative_values` with `numpy.clip`
wip
wip: revisiting the DTI example to add a better FOV, color Fa and other stuff
Changed the field of view and added other metrics computed in the DTI example on the Gallery
Changed math formula in DTI example to be more consistent with existing literature
Had to remove again the csa examples from tests
TEST: Added test for minmax normalization
DOC: Corrected typo
DOC: Changed the url for the Fibernavigator.
Merge pull request #16 from jchoude/reconst_dti_revisited

DOC: Changed the url for the Fibernavigator.
Removed the save tensor method for fibernav for a fibernav specific example or to be used with dipy.external or dipy.io
Merge pull request #204 from Garyfallidis/reconst_dti_revisited

Maxime's [Gallery] Reconst DTI example revisited