Add tiebreak analyzer

mj.rb

@@ -65,6 +65,23 @@ class MajorityJudgment
     return MajorityJudgment.new(counta) <=> MajorityJudgment.new(countb)
   end
 
+  def break_tie(other)
+    rounds = [ ]
+    s = MajorityJudgment.new(self.count.dup)
+    o = MajorityJudgment.new(other.count.dup)
+    rounds << [s, o]
+    while s.mj == o.mj and not s.mj == 0
+      new_s_count = s.count.dup
+      new_o_count = o.count.dup
+      new_s_count[s.mj] = new_s_count[s.mj] - 1
+      new_o_count[o.mj] = new_o_count[o.mj] - 1
+      s = MajorityJudgment.new(new_s_count)
+      o = MajorityJudgment.new(new_o_count)
+      rounds << [s, o]
+    end
+    return rounds
+  end
+
   def to_s
     puts "#{@count}: {M=>#{self.mj}, P=>#{self.proponents}, O=>#{self.opponents}}"
   end