move some new numeric classes to namespace octave::math * aepbalance.cc, aepbalance.h, chol.cc, chol.h, gepbalance.cc, gepbalance.h, hess.cc, hess.h, lu.cc, lu.h, qr.cc, qr.h, qrp.cc, qrp.h, schur.cc, schur.h, sparse-chol.cc, sparse-chol.h, sparse-dmsolve.cc,sparse-lu.cc, sparse-lu.h, sparse-qr.cc, sparse-qr.h, svd.cc, svd.h: Move classes to namespace octave::math. * __luinc__.cc, __qp__.cc, balance.cc, hess.cc, lu.cc, qz.cc, schur.cc, sqrtm.cc, svd.cc, chol.cc, dmperm.cc, qr.cc, lex.h, CMatrix.cc, CSparse.cc, dMatrix.cc, dSparse.cc, fCMatrix.cc, fMatrix.cc, eigs-base.cc, oct-norm.cc: Update for new namespaces.

--- a/liboctave/numeric/lu.h	Tue Aug 16 20:43:59 2016 +0200
+++ b/liboctave/numeric/lu.h	Tue Aug 16 15:48:22 2016 -0400
@@ -28,6 +28,11 @@
 
 #include "PermMatrix.h"
 
+namespace octave
+{
+namespace math
+{
+
 template <typename T>
 class
 lu
@@ -95,4 +100,7 @@
   Array<octave_idx_type> ipvt;
 };
 
+}
+}
+
 #endif