fix(babel7): plugin options are centralized since Babel7-beta.3

refs: babel/babel#6376

Author: twada

index.js

@@ -12,6 +12,6 @@
 
 var createEspowerPlugin = require('./create');
 
-module.exports = function (babel) {
-    return createEspowerPlugin(babel);
+module.exports = function (babel, options) {
+    return createEspowerPlugin(babel, options);
 };

lib/create-espower-visitor.js

@@ -7,12 +7,12 @@ var BabelEspowerVisitor = require('./babel-espower-visitor');
 module.exports = function createEspowerVisitor (babel, options) {
     return {
         visitor: {
-            Program: function (path, state) {
+            Program: function (path) {
                 var opts = assign(defaultOptions(), {
                     astWhiteList: babel.types.BUILDER_KEYS,
                     visitorKeys: babel.types.VISITOR_KEYS,
                     sourceRoot: process.cwd()
-                }, options, state.opts);
+                }, options);
                 var espowerVisitor = new BabelEspowerVisitor(babel, opts);
                 var innerVisitor = Object.keys(opts.visitorKeys).reduce(function (handlers, nodeType) {
                     handlers[nodeType] = {
@@ -25,7 +25,7 @@ module.exports = function createEspowerVisitor (babel, options) {
                     };
                     return handlers;
                 }, {});
-                path.traverse(innerVisitor, state);
+                path.traverse(innerVisitor);
             }
         }
     };