Improvement algorithm

## Update data

1. Update BIOGRID data from 3.2.117 to 3.2.118
2. Re-download TCGA PRAD RNASeq-v2 at 2014-11-15
3. Re-encode Gene Symbol Name to Entrez ID (For avoiding conflict of Gene Symbol Name)

## Improvement algorithm

1. Using 2 tables for F
2. Refactor loading method of prior knowledge data (Split loading method of data)
3. Remove ROC curve analysis code (Its implementation is wrong, We decided to use [MedCalc](http://www.medcalc.org))