Merge pull request #403 from ricardograca/master

Only load .js files from the migrations directory

.gitignore

@@ -4,3 +4,4 @@ test*.js
 .DS_STORE
 node_modules
 npm-debug.log
+*~

lib/migrator.js

@@ -93,7 +93,9 @@ module.exports = (function() {
       callback && callback(null, result)
     }
 
-    var migrationFiles = fs.readdirSync(this.options.path)
+    var migrationFiles = fs.readdirSync(this.options.path).filter(function(file) {
+      return /\.js$/.test(file)
+    })
 
     var migrations = migrationFiles.map(function(file) {
       return new Migration(self, self.options.path + '/' + file)