Add prop-type dependency

Author: cht8687

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-listview-sticky-header",
-  "version": "0.5.3",
+  "version": "0.5.4",
   "description": "react listview with sticky header",
   "main": "dist/index.js",
   "scripts": {
@@ -79,5 +79,8 @@
     "tape": "^4.5.1",
     "webpack": "^1.13.0",
     "webpack-dev-server": "^1.14.1"
+  },
+  "dependencies": {
+    "prop-types": "^15.5.10"
   }
 }

src/ReactListView.js

@@ -1,7 +1,8 @@
-import React, { Component, PropTypes } from 'react'
+import React, { Component } from 'react'
 import { findDOMNode } from 'react-dom'
 import ListHeader from './lib/ListHeader'
 import ListItems from './lib/ListItems'
+import PropTypes from 'prop-types'
 
 export default class ReactListView extends Component {
   static propTypes = {

src/lib/ListHeader.js

@@ -1,4 +1,5 @@
-import React, { Component, PropTypes } from 'react'
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
 
 export default class ListHeader extends Component {
   static propTypes = {

src/lib/ListItems.js

@@ -1,4 +1,5 @@
-import React, { Component, PropTypes } from 'react'
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
 
 export default class ListItem extends Component {
   static propTypes = {