Converted from the buggy PageFetcher to the hopefully less buggy Downloader class.
Converted from the buggy PageFetcher to the hopefully less buggy Downloader class.

ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools