NF: Command line interface to QuickBundles.
BF: Make sure that dipy_quickbundles gets installed.
RF: More fixes.
RF: More work to get it to be compatible with vistasoft conventions.
RF: Improvements: cluster colors, pickle-saving.
BF: Save .trk file header. Don't error every time, when using .trk files.
TST: Testing the QB script.
RF + TST: Use save_pickle and test it.
TST: dipy_quickbundles requires mpl.
TST + RF: Added an option to specify the output path. Added MPL to Travis.
NF: added a new analytical response function derivation for Models that compute ODF with the r2 term
faster test
RF: Clean out some cruft.
Modifications done following Ariel's comments
Also save centroids as output.
added and complemented documentation
DOC: Working on RESTORE example. Enhanced DTI docstring.
WIP
NF - add gfa attribute to spherical harmonic fits
TST - added test for gfa of sh models