fix 推薦學習點重複推薦的流程控制(加上剩餘時間)
Merge branch 'master' of github.com:CHU-TDAP/E-learning-Server
fix create_cofig.php&create_database.php，修正推薦學習點的演算法不足的地方
Merge branch 'master' of github.com:CHU-TDAP/E-learning-Server