Split up imports from Problem to get rid of a code nag.

src/wolfgoatcabbage/MIP.java

@@ -3,7 +3,11 @@ package wolfgoatcabbage;
 import ilog.concert.IloException;
 import ilog.concert.IloNumVar;
 import ilog.cplex.IloCplex;
-import static wolfgoatcabbage.Problem.*;
+import static wolfgoatcabbage.Problem.CABBAGE;
+import static wolfgoatcabbage.Problem.GOAT;
+import static wolfgoatcabbage.Problem.ITEMCOUNT;
+import static wolfgoatcabbage.Problem.TMAX;
+import static wolfgoatcabbage.Problem.WOLF;
 
 /**
  * MIP provides a mixed integer linear programming model to solve the logic