reload config; create a config so it doens't damage original

lib/contracts/contract_deployer.js

@@ -216,10 +216,13 @@ class ContractDeployer {
       },
       function estimateCorrectGas(next) {
         if (contract.gas === 'auto') {
-          return deployObject.estimateGas().then((gasValue) => {
+          return self.blockchain.estimateDeployContractGas(deployObject, (err, gasValue) => {
+            if (err) {
+              return next(err);
+            }
             contract.gas = gasValue;
             next();
-          }).catch(next);
+          });
         }
         next();
       },

lib/contracts/contracts.js

@@ -1,5 +1,6 @@
 let toposort = require('toposort');
 let async = require('async');
+const cloneDeep = require('clone-deep');
 
 let utils = require('../utils/utils.js');
 const constants = require('../constants');
@@ -10,7 +11,7 @@ class ContractsManager {
   constructor(options) {
     const self = this;
     this.contractFiles = options.contractFiles;
-    this.contractsConfig = options.contractsConfig;
+    this.contractsConfig = cloneDeep(options.contractsConfig || {});
     this.contracts = {};
     this.logger = options.logger;
     this.plugins = options.plugins;
@@ -58,7 +59,20 @@ class ContractsManager {
 
   build(done) {
     let self = this;
+    self.contracts = {};
     async.waterfall([
+      function loadContractFiles(callback) {
+        self.events.request("config:contractsFiles", (contractsFiles) => {
+          self.contractsFiles = contractsFiles;
+          callback();
+        });
+      },
+      function loadContractConfigs(callback) {
+        self.events.request("config:contractsConfig", (contractsConfig) => {
+          self.contractsConfig = cloneDeep(contractsConfig);
+          callback();
+        });
+      },
       function compileContracts(callback) {
         self.events.emit("status", __("Compiling..."));
         if (process.env.isTest && self.compiledContracts && Object.keys(self.compiledContracts).length) {

lib/core/config.js

@@ -7,6 +7,7 @@ const deepEqual = require('deep-equal');
 const constants = require('../constants');
 
 var Config = function(options) {
+  const self = this;
   this.env = options.env;
   this.blockchainConfig = {};
   this.contractsConfig  = {};
@@ -22,6 +23,14 @@ var Config = function(options) {
   this.events = options.events;
   this.embarkConfig = {};
   this.context = options.context || [constants.contexts.any];
+
+  self.events.setCommandHandler("config:contractsConfig", (cb) => {
+    cb(self.contractsConfig);
+  });
+
+  self.events.setCommandHandler("config:contractsFiles", (cb) => {
+    cb(self.contractsFiles);
+  });
 };
 
 Config.prototype.loadConfigFiles = function(options) {