Removed some unused stuff from blas.h to avoid warnings.
Put OpenMP loop into pragma to avoid warnings.
Fixed warning for type conversion.

Fixed warning for the type conversion time_t to unsigned int.
Fixed warning concerning a missing break.
Fixed warnings for signed/unsigned comparison.
Fixed Windows warning signed/unsigned comparison.

Fixed Windows warning signed/unsigned comparison for OpenMP loop type.
Matching sigs of amuxCRS fixes virt override warn.

Match the signatures of the derived class CRSMatrixReorderedOpenMP::amuxCRS() and the base class CRSMatrix::amuxCRS().
Remove warnings in TestPolyline.cpp.
Merge pull request #2 from endJunction/FixWarningsInVisualStudio

Remove warnings in TestPolyline.cpp.
Merge pull request #110 from TomFischer/FixWarningsInVisualStudio

Fix some warnings exclusive in visual studio.