4.2 release
Faster reading of jigdo template
bugfix for reading PGP signature from metalink file
patch submitted to fix race condition on cancel
code cleanup
minor bugfixes for jigdo
closer to jigdo download support, file size is correct, but bad checksum for ISO
Jigdo ISO generation support almost works now, but not quite
now handles the mirrorlists section for better segmented downloading
downloading now works for jigdo files, still need to assemble ISO