introduce finally converged weights in Fragger

loop/pymod/_fragger.py

@@ -61,9 +61,9 @@ def _GetWeights(weight_group, frag_size):
         elif size_idx == 2:
             return [1.0, 27.523, -3.819, -8.318]
         elif size_idx == 3:
-            return [1.0, 11.413, -1.675, -7.054] 
+            return [1.0, 17.009, -1.805, -7.055] 
         elif size_idx == 4:
-            return [1.0, 6.553, -0.797, -11.290] 
+            return [1.0, 6.526, -0.798, -11.290] 
         
 
 def _SetupFragger_one(frag_sequence, subst_mat):