- 归档多线程下载支持读取代理配置
- 归档多线程下载支持控制并发度，在下载线程不足时会自动进入等待状态
- 优化归档多线程时出现410、429时的提示
- 修复归档多线程下载时的若干bug
- Support load proxy config for multi-thread archive downloading
- Support control concurrency for multi-thread archive downloading, it will wait until threads is enough
- Optimized hints when 410、429 error occurs for multi-thread archive downloading
- Fix several bugs for multi-thread archive downloading