warn user if there was issues deploying a contract

Author: iurimatias

lib/deploy.js

@@ -90,6 +90,17 @@ Deploy.prototype.deploy_contracts = function(env) {
       }
 
       var contractAddress = receipt.contractAddress;
+
+      if (web3.eth.getCode(contractAddress) === "0x") {
+        console.log("=========");
+        console.log("contract was deployed at " + contractAddress + " but doesn't seem to be working");
+        console.log("try adjusting your gas values");
+        console.log("=========");
+      }
+      else {
+        console.log("deployed " + className + " at " + contractAddress);
+      }
+
       this.deployedContracts[className] = contractAddress;
 
       console.log("deployed " + className + " at " + contractAddress);