Magnet support arrives

KTorrent version 4.0beta1 is out, this release adds support for magnet URL's.
Next to the magnet support, some other smaller features were also added. Including the possiblity to add multiple trackers at the same time, the bandwidth scheduler can now be disabled temporarely and the IP filter dialog now supports IP ranges.

Next to the 4.0beta1 release there is also a new bugfix release for the 3.3 branch, this fixes two crashes.