Cost computation output is not saved in DB

[adrianopolus]

The output of the cost computation is not stored any where in the DB. This can be a problem when the output contains relevant information besides the cost value, i.e. multidimensional values that are mapped to a scalar value.

[adrianopolus]

The output of the cost computation can be concatenated to the output of the solver. This way it is stored in the db in the solverOutput.