Origin for each line in TODO from check-in fb10031536:

fb10031536 2010-08-21    1: Some things I should take care about:
fb10031536 2010-08-21    2: 
fb10031536 2010-08-21    3:  * If-(Unm|M)odified-Since
fb10031536 2010-08-21    4: This one is totally ignored. Code should be added to correctly return 304.
fb10031536 2010-08-21    5: 
fb10031536 2010-08-21    6:  * Multiple byte ranges
fb10031536 2010-08-21    7: Totally unsupported but requested with multiple byte ranges can be generated.
fb10031536 2010-08-21    8: 
fb10031536 2010-08-21    9:  * Handling of files without Content-Length
fb10031536 2010-08-21   10: Those ones wouldn't work now.
fb10031536 2010-08-21   11: 
fb10031536 2010-08-21   12:  * Get piece of file when issuing a HEAD request
fb10031536 2010-08-21   13: Why not? This way we will silently complete all of the partial files.
fb10031536 2010-08-21   14: 
fb10031536 2010-08-21   15:  * File recheck
fb10031536 2010-08-21   16: Currently when file is fully downloaded it gets stored in real file tree to be served by production-grade web-server. This way we will never see any requests to that file. Finding oldest ones and moving them to .parts would suffice.
fb10031536 2010-08-21   17: 
fb10031536 2010-08-21   18:  * File time
fb10031536 2010-08-21   19: Currently when file is downloaded it gets current time, not the time in Last-Modified.