Fix bug where crowdsale is not being deployed to the blockchain durin…

…g migrations.

This resolves: dappuniversity#3

This bug was caused by the way in which the migrations steps are added to the promise chain. More can be read about this issue here: trufflesuite/truffle#501

migrations/2_deploy_crowdsale.js

@@ -12,19 +12,15 @@ const duration = {
   years: function (val) { return val * this.days(365); },
 };
 
-module.exports = async function(deployer, network, accounts) {
+module.exports = function(deployer, network, accounts) {
   const _name = "Dapp Token";
   const _symbol = "DAPP";
   const _decimals = 18;
 
-  await deployer.deploy(DappToken, _name, _symbol, _decimals);
-  const deployedToken = await DappToken.deployed();
-
   const latestTime = (new Date).getTime();
 
   const _rate           = 500;
   const _wallet         = accounts[0]; // TODO: Replace me
-  const _token          = deployedToken.address;
   const _openingTime    = latestTime + duration.minutes(1);
   const _closingTime    = _openingTime + duration.weeks(1);
   const _cap            = ether(100);
@@ -34,20 +30,26 @@ module.exports = async function(deployer, network, accounts) {
   const _partnersFund   = accounts[0]; // TODO: Replace me
   const _releaseTime    = _closingTime + duration.days(1);
 
-  await deployer.deploy(
-    DappTokenCrowdsale,
-    _rate,
-    _wallet,
-    _token,
-    _cap,
-    _openingTime,
-    _closingTime,
-    _goal,
-    _foundersFund,
-    _foundationFund,
-    _partnersFund,
-    _releaseTime
-  );
+  deployer.then(async() => {
+    await deployer.deploy(DappToken, _name, _symbol, _decimals);
+
+    const _deployedToken = await DappToken.deployed();
+
+    await deployer.deploy(
+      DappTokenCrowdsale,
+      _rate,
+      _wallet,
+      _deployedToken.address,
+      _cap,
+      _openingTime,
+      _closingTime,
+      _goal,
+      _foundersFund,
+      _foundationFund,
+      _partnersFund,
+      _releaseTime
+    );
+  });
 
   return true;
 };