Merge pull request #400 from ricardograca/master

Migrations - renameColumn: Unhandled error if field name doesn't exist

lib/query-interface.js

@@ -133,7 +133,7 @@ module.exports = (function() {
 
 
     return new Utils.CustomEventEmitter(function(emitter) {
     return new Utils.CustomEventEmitter(function(emitter) {
       self.describeTable(tableName).success(function(data) {
       self.describeTable(tableName).success(function(data) {
-        data = data.filter(function(h) { return h.Field == attrNameBefore })[0]
+        data = data.filter(function(h) { return h.Field == attrNameBefore })[0] || {}
 
 
         var options =  {}
         var options =  {}