Optimize searching chunks.
Optimize searching chunks.

gb_sets is intelligent and optimizes intersections based on gb_set
size evaluations. So it it simpler to use it to generate intersections
and then iterate these on the fly. It may be a bit slower in the
common case, but it balances out nicely by providing faster run times
for edge-cases.

beni55/etorrent,jlouis/etorrent