Merge pull request #133 from Garyfallidis/fix_tests_dsi_deconv

Corrected test for Deconvolution after the discrete direction finder was removed
NF example for Tensor reconstruction
DOC minor updates
DOC QuickBundles Youtube highlight
DOC fixing minor mistakes and working on the presentation of the website
DOC added more info on masking for reconst_dti
DOC corrected language
DOC minor module addition
DOC added docstring for symm724
DOC started working on CSA example
simple update of the index table for examples
Minor print added for shape
BF for saving the streamlines in the correct space for trackvis we need the option points_space='voxel'
A bit more information on the output of peaks_from_model
RF pep and corrected bvecs for Taiwan dataset
Started example for DSI still much work needed
A small update on reconst_dsi example. I still need to check if the message of this example is coming out correctly
Added dsi example
DOC Minor change on title
PEP8 on reconst_csa