Shifu Eval Confuion and Performance Improvement

[zhangpengshan]

In branch develop-0.2.4, we improve scalability of eval step while two steps:
runConfusionMatrix(evalConfig);
runPerformance(evalConfig);

The first step creates one file and read in second step. We can merge these two steps into one without creating one file.

[zhangpengshan]

To make it compatible with independent runConfusionMatrix and runPerformance steps, a single method is to combine these two steps.

[zhangpengshan]

Zhang, Simon is working on this issue. He will send pull request.

[zhangpengshan]

Done by Simon Zhang. Already merged into develop-0.2.5