Add bdcsvd unit test in CMakeLists
Fix adjoint unit test: test_isApproxWithRef works for positive quantities only.
Remove obsolete sentence on LPGL in MKL doc.
Expose InnerSizeAtCompileTime in SparseMatrixBase (it was already present in DenseBase) and simplify sparse_vector_assign_selector (this also fix a stupid warning in old gcc versions)
Fix Sparse LU for matrices in non compressed mode
avoid unneeded const_cast
Fix testing issues with x87 extra precision.