Very basic EVM binary. (#1574)

* EVM binary - initial version

* Adding missing documentation

* Fixing warnings

* Basic evmbin options

* EVMbin crate.

ethcore/src/lib.rs

@@ -118,18 +118,18 @@ pub mod pod_state;
 pub mod engine;
 pub mod migrations;
 pub mod miner;
+#[macro_use] pub mod evm;
+pub mod action_params;
 
 mod blooms;
 mod db;
 mod common;
 mod basic_types;
-#[macro_use] mod evm;
 mod env_info;
 mod pod_account;
 mod state;
 mod account;
 mod account_db;
-mod action_params;
 mod null_engine;
 mod builtin;
 mod substate;