changed data type for _n_subdivisions to avoid two implicitcasts with potential loss of information
Merge pull request #546 from rinkk/ImplicitCastFix

Data type change in Subdivision
Better prerequisite checking for coverage reports.
Disabled long running tests, introduced new make target ctest-large.
Enabled xUnit report generation on CTest targets.
[ML] Const correction, variable locality.
[ML] Replace throw with assert in DenseMatrix::op().
Merge pull request #548 from endJunction/DenseMatrixOptimizations

Dense matrix optimizations