Some tweaks in the network crate (#1108)

* Move Roles to network::config

* Make network::config public

* Move NetworkConfig and NonReservedMode to config

* Move Params to config

* Move node_id() to NetworkManager and fix tests

* Rename Specialization to NetworkSpecialization

substrate/core/network/src/test/mod.rs

@@ -35,7 +35,7 @@ use keyring::Keyring;
 use codec::Encode;
 use import_queue::{SyncImportQueue, PassThroughVerifier, Verifier};
 use consensus::BlockOrigin;
-use specialization::Specialization;
+use specialization::NetworkSpecialization;
 use consensus_gossip::ConsensusGossip;
 use import_queue::ImportQueue;
 use service::ExecuteInContext;
@@ -62,7 +62,7 @@ pub struct DummySpecialization {
 	pub gossip: ConsensusGossip<Block>,
 }
 
-impl Specialization<Block> for DummySpecialization {
+impl NetworkSpecialization<Block> for DummySpecialization {
 	fn status(&self) -> Vec<u8> { vec![] }
 
 	fn on_connect(&mut self, ctx: &mut Context<Block>, peer_id: NodeIndex, status: ::message::Status<Block>) {

substrate/core/network/src/test/sync.rs

@@ -16,9 +16,9 @@
 
 use client::backend::Backend;
 use client::blockchain::HeaderBackend as BlockchainHeaderBackend;
+use config::Roles;
 use consensus::BlockOrigin;
 use sync::SyncState;
-use Roles;
 use super::*;
 
 #[test]