Network traffic shaping.

[Giuseppe Vallarelli]

Hi everybody, I'm working to implement traffic shaping at the network level [1].
This feature is composed by two distinct parts: definition of traffic shaping
for a logical network entity and optional redefinition of traffic shaping when
the user is doing a Setup Host Networks task. Initial focus will be on first
part. There are some points of contact with Network Qos [2] that's why I proposed
to reuse some code backend side.

Cheers, Giuseppe

[1] http://www.ovirt.org/Features/Network_traffic_shaping
[2] http://www.ovirt.org/Features/Network_QoS