Loosen default tolerance: accelerate convergence.

For larger optimizations the default termination value of 1e-10 may be way too small.
So 1e-5 is generally better, but the user can always change it themselves...

src/mlpack/methods/amf/termination_policies/simple_residue_termination.hpp

@@ -34,7 +34,7 @@ class SimpleResidueTermination
    * @param minResidue Minimum residue for termination.
    * @param maxIterations Maximum number of iterations.
    */
-  SimpleResidueTermination(const double minResidue = 1e-10,
+  SimpleResidueTermination(const double minResidue = 1e-5,
                            const size_t maxIterations = 10000)
       : minResidue(minResidue), maxIterations(maxIterations) { }