Fix issue with incorrect migrations in SequelizeMeta being deleted when revertin…

…g multiple migrations

lib/migrator.js

@@ -49,8 +49,8 @@ module.exports = (function() {
             , from    = migrations[0]
             , from    = migrations[0]
 
 
           if(options.method == 'down') {
           if(options.method == 'down') {
-            migrations.reverse()
             from = migrations[0]
             from = migrations[0]
+            migrations.reverse()
           }
           }
 
 
           migrations.forEach(function(migration) {
           migrations.forEach(function(migration) {