DOC - fixup forward_sdeconv_mat docs
TST - added simple test for forward_sdeconv_mat
RF - simplify forward_sdeconv_mat signature
TST - slightly better test
RF - re-factored csdeconv API
RF - take out unused arrays
Merge pull request #219 from MrBago/update_forward_sdeconv_mat

Update forward sdeconv mat
refactoring
removed the last dimension reshaping gfa array
BF - zip object to list
RF - minor
Merge branch 'refactoring_peaks_from_model_parallel_fct' of github.com:gabknight/dipy into refactoring_peaks_from_model_parallel_fct