Title: Editing Host Network Interfaces and Adding Logical Networks to Hosts

Describe the issue:
Documetation should specify conditions to network being not in sync based on the explanation here:
http://wiki.ovirt.org/SetupNetworks_SyncNetworks
Exact text:
"
Network will be considered 'out of sync' on the following conditions:
-    VM Netwrok is different.
-    VLAN ID is different.
-    MTU is set on the logical network, and is different. 

When network is out of sync, it is considered as an unmanaged network, until synced. This means it cannot be edited or moved if it is out of sync, unless it is set to be synced. 
"

Why is it needed?
Just would make it more clear why the network got out of sync. Right now it is not clear at all. And what does it mean that the network is out of sync.

Note:
I am not sure this would be the perfect location in the guide to specify it, but this is the only place in documentation we mention this at all.