fix eslint issues

src/core/components/parameter-row.jsx

@@ -1,7 +1,7 @@
-import React, { Component, PropTypes } from "react"
+import React, { Component } from "react"
+import PropTypes from "prop-types"
 import win from "core/window"
 
-
 export default class ParameterRow extends Component {
   static propTypes = {
     onChange: PropTypes.func.isRequired,