message: export iterators
diff: @@ -106,6 +106,7 @@ pub type Ix2 = ndarray::Ix2;
  pub use indexing::SpIndex;
  pub use sparse::{
  + csmat::OuterIterator, csmat::OuterIteratorMut, csmat::OuterIteratorPerm,
  CsMat, CsMatBase, CsMatI, CsMatVecView, CsMatView, CsMatViewI,
  CsMatViewMut, CsMatViewMutI, CsVec, CsVecBase, CsVecI, CsVecView,
  CsVecViewI, CsVecViewMut, CsVecViewMutI, SparseMat, TriMat, TriMatBase,
  