v0.7.4

Features

• disable banner (CKylinMC)
• multi-source supports (CKylinMC)
• add repo cmd (CKylinMC)
• check stable only (CKylinMC)
• prevent repos field changes by config. (CKylinMC)

Bug Fixes

• remove unused imports and variables (CKylinMC)
• missing 's' char in for loop (CKylinMC)
• wrong name showing in install process (CKylinMC)