hot-fix：算分服务

mooctest-site-server/src/main/java/cn/iselab/mooctest/site/web/logic/impl/CalculateScoreLogicImpl.java

@@ -137,7 +137,7 @@ public class CalculateScoreLogicImpl implements CalculateSocreLogic {
             String id = (String) it.next();
             JSONObject caseInfo = cases.getJSONObject(id);
             if(!caseInfo.has("maxScore")){
-                return 0.0;
+                continue;
             }
             double maxScore = caseInfo.getDouble("maxScore");
             long caseId = caseInfo.getLong("id");