中文

Enhancement

• Improve Performance: Optimize the logic in FileDownloader#init, let it lighter(just do some action like assign context and maker)

Fix

• Fix(pause): fix can't stop the task when occurring the high concurrency event about pausing task after starting it in very close time. Closes #402
• Fix(init FileDownloader): fix the very low frequent crash when init FileDownloader on the process the FileDownloadService settled on. Closes #420
• Fix(FileDownloadHttpException): fix params can't match the formatter when occur FileDownloadHttpException Closes #438