o Apply WIP3c patches from MLDonkey developer's:
- Both fix and refactor the handling of sources from multiple
p2p networks. For example, downloading of a file from
different networks at once.
1) some more commonSwarming.ml cleanups and commenting
2) bugfix of compute_block_num algorithm
o Bump PORTREVISION
Submitted by: pango <firstname.lastname@example.org>