Moved test helpers to files ending in _test.go
Exposed CheckEqual function to other packages
Added LDL and symmetric solve
Moved to non-lapack names; hid lapack functions
Abbreviated SolveComplex and SolveMatrix
Renamed Solve to SolveCond
Added positive-definite (Cholesky) solver
Added Cholesky decomposition
Added AppendRows and AppendCols

Renamed to Contig(T), Stride(T)
Added concept of capacity to matrices

Refined method set of matrix implementations.
Used specialized operators where possible
Echoed changes to mat in zmat
Updated terminology of mat package
Added capacity to stride matrix

Lapack routines now take Stride instead of ColMajor interface.
In-place lapack routines all return matrix/vector.
Changed from SolveNXxxYyy to SolveXxxMatYyy.
Changed from SolveXxxInPlace to SolveXxxNoCopy.
Provided multiple Solve methods for LDL and Cholesky.
Provided complex support for LDL.
Renamed RealLU to just LU.