Changes in 0.5: * Add Banded matrix data type, as well as Tri Banded and Herm Banded. * Add support for trapezoidal dense matrices (Tri Matrix (m,n) e, where m is not the same as n). Note that trapezoidal banded matrices are *NOT* supported. * Add Diag matrix data type for diagonal matrices. * Add Perm matrix data type, for permutation matrices. * Enhance the RMatrix and RSolve type classes with an API that allows specifying where to store the result of a computation. * Enhance the IMatrix, RMatrix, ISolve, and RSolve type classes to add "scale and multiply" operations. * Remove the scale parameter for Tri and Herm matrix data types. * Flatten the data types for DVector and DMatrix. * Some inlining and unpacking performance improvements.