downgrade to 0.4.17

Author: iurimatias

boilerplate/config/contracts.json

@@ -2,7 +2,7 @@
   "default": {
     "versions": {
       "web3.js": "1.0.0-beta",
-      "solc": "0.4.18"
+      "solc": "0.4.17"
     },
     "deployment": {
       "host": "localhost",

demo/config/contracts.json

@@ -2,7 +2,7 @@
   "default": {
     "versions": {
       "web3.js": "1.0.0-beta",
-      "solc": "0.4.18"
+      "solc": "0.4.17"
     },
     "deployment": {
       "host": "localhost",

lib/core/config.js

@@ -79,7 +79,7 @@ Config.prototype.loadContractsConfigFile = function() {
   var configObject = {
     "versions": {
       "web3.js": "0.19.1",
-      "solc": "0.4.18"
+      "solc": "0.4.17"
     },
     "deployment": {
       "host": "localhost",