Implement a BitTorrent backend for QNetworkAccessManager

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library usage scenario
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using an adaption of the torrent example for my own code is not complicated, as my coreapplication shows [1].

in contrast:
the gui example is a very good and complete example of how to use the torrent subsystem but lacks easy copy'n'paste factor one is used to when programming qt.

see:
torrent-guiless.pro
main-nogui.cpp
coreapplication.cpp
coreapplication.h

which has a console frontend only. handy for integration into your project - can be copied to any project with just a few lines of code.

build with:
make distclean
qmake torrent-guiless
make
./torrent-guiless

IMPLEMENTED:

• foobar.torrent and directory can be supplied using the command line
• qsettings resume support
• i've changed the default upload/download rates already (see git log)
• i've also added support for compiling with QT_NO_CAST_FROM_BYTEARRAY and QT_NO_CAST_TO_ASCII

WISH: please create a QTorrent class (as you did with QHTTP) for library usage
WISH: please consider using this codebase as lightweight example.
LEGAL: you can use the same copyright for my code as it is used with the torrent example already.

[1] git@github.com:qknight/torrent.git