Update to TestRPC v6.0.1

Author: benjamincburns

package.json

@@ -123,7 +123,7 @@
     "electron-compile": "^6.4.2",
     "electron-settings": "^3.1.2",
     "electron-squirrel-startup": "^1.0.0",
-    "ethereumjs-testrpc": "^4.1.3",
+    "ethereumjs-testrpc": "^6.0.1",
     "ethereumjs-units": "^0.2.0",
     "find-process": "^1.1.0",
     "lodash": "^3.10.1",

src/chain.js

@@ -59,12 +59,19 @@ function startServer(options) {
       oldSendAsync(payload, callback)
     }
 
-    server.listen(options.port, options.hostname, function(err, state) {
+    server.listen(options.port, options.hostname, function(err, result) {
       if (err) {
         process.send({type: 'start-error', data: err});
         return
       }
 
+      var state = result ? result : server.provider.manager.state;
+
+      if (!state) {
+        process.send({type: 'start-error', data: "Couldn't get a reference to TestRPC's StateManager."});
+        return
+      }
+
       var data = {
         mnemonic: state.mnemonic,
         hdPath: state.wallet_hdpath,