Fixed silly macro issue in define-tensor-method. Fixed bug in loadtxt.
Added arithmetic operators to sugar.
Added ones, eye to sugar.
Added a memo marker to the with-marking macro.
Saving state on Sparse tensors.
Added a proper shuffler.
Saving state on the sparse tensor.
Switched from vanilla sort to topological sort to deal with the lack of total ordering on types.
Added "ignorable" declarations to deft/method; gets rid of all those annoying style warnings.
Added a ref method for compressed sparse matrices.
Removed whitespace in compressed sparse.