Renamed CCSSparsity/Matrix/MX::append(...) -> appendColumns(...), #554
Added new CCSSparsity/Matrix/MX::append(...), #554
Checked out examples from develop branch, #554
Fixed codegen_usage.cpp, #554
Updated Matrix::printVector(), Matrix::vector(), (removed old), #554
Updated Matrix::printVector(), Matrix::vector(), (added new), #554
Fixed RKIntegrator, #554