Split IO and network crates (#1828)

* Abort on panic

* Split IO and network crates

* Restore panic handler

* Fixed doc tests

ethcore/src/tests/client.rs

@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
+use io::IoChannel;
 use client::{BlockChainClient, MiningBlockChainClient, Client, ClientConfig, BlockID};
 use block::IsBlock;
 use tests::helpers::*;

ethcore/src/tests/helpers.rs

@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
+use io::*;
 use client::{self, BlockChainClient, Client, ClientConfig};
 use common::*;
 use spec::*;

ethcore/src/tests/rpc.rs

@@ -24,7 +24,7 @@ use tests::helpers::*;
 use devtools::*;
 use miner::Miner;
 use crossbeam;
-use common::IoChannel;
+use io::IoChannel;
 
 pub fn run_test_worker(scope: &crossbeam::Scope, stop: Arc<AtomicBool>, socket_path: &str) {
 	let socket_path = socket_path.to_owned();