remove old remove listener; fix callback

lib/contracts/code_generator.js

@@ -101,12 +101,10 @@ class CodeGenerator {
       self.buildWeb3JS(cb);
     });
 
-    this.events.removeListener('code-generator:contract', () => {
     self.events.setCommandHandler('code-generator:contract', (contractName, cb) => {
       let contract = self.contractsManager.contracts[contractName];
       self.buildContractJS(contractName, self.generateContractJSON(contractName, contract), cb);
     });
-    });
 
   }
 

lib/contracts/contracts.js

@@ -27,11 +27,10 @@ class ContractsManager {
     });
 
     const self = this;
-    this.events.removeListener('contracts:list', () => {
     self.events.setCommandHandler('contracts:list', (cb) => {
+      console.dir('received request');
       cb(self.listContracts());
     });
-    });
   }
 
   build(done) {

lib/pipeline/pipeline.js

@@ -3,6 +3,7 @@ const async = require('async');
 const child_process = require('child_process');
 const utils = require('../utils/utils.js');
 const constants = require('../constants');
+//require("../utils/debug_util.js")(__filename, async);
 
 require("babel-preset-react");
 require("babel-preset-es2015");
@@ -187,7 +188,7 @@ class Pipeline {
       self.events.request('contracts:list', (contracts) => {
         async.each(contracts, (contract, eachCb) => {
           fs.writeJson(fs.dappPath(this.buildDir, 'contracts', contract.className + ".json"), contract, {spaces: 2}, eachCb);
-        }, callback);
+        }, () => {callback()});
       });
     });
   }