Release v1.3.3

Improvements:

• MIPResults now have getters to find the absolute and the relative gap compared to the best relaxed solution. If, e.g., the solver runs into a user-defined timeout and gives back the so-far-best solution, this can help to estimate the quality of this solution.
• Solution Pool Mode 4:
  • The user can now define a time limit for finding even better solutions for the solution pool
  • The user can now define tolerances for accepting the solutions in the solution pool
    • A relative tolerance means that the user is fine with the solution pool if the objective value of worst solution in the pool is within X% of the objective value of the optimal solution
    • An absolute tolerance means that the user is fine with the solution pool if the objective value of worst solution in the pool is not further than X from the objective value of the optimal solution. This is especially useful if the objective value of the optimal solution goes towards zero, because the relative tolerance has very little or no effect in this case.
    • See the documentation for more details and examples
  • The user can now define the variables of interest in a more detailed way, if necessary. Check the documentation for more details.