Add prop-types package and update code

* React.PropTypes is deperecated and was throwing a warning in the
console.

package.json

@@ -114,6 +114,7 @@
     "karma-jasmine-sinon": "^1.0.4",
     "lighthouse": "^1.6.3",
     "moxios": "^0.4.0",
+    "prop-types": "^15.5.10",
     "react-addons-test-utils": "^15.4.2",
     "react-dom": "^15.4.2",
     "selenium-standalone": "^5.11.0",

static_src/components/action.jsx

@@ -1,4 +1,5 @@
 
+import PropTypes from 'prop-types';
 import React from 'react';
 import style from 'cloudgov-style/css/cloudgov-style.css';
 
@@ -21,14 +22,14 @@ const BUTTON_TYPES = [
 ];
 
 const propTypes = {
-  children: React.PropTypes.any,
-  classes: React.PropTypes.array,
-  clickHandler: React.PropTypes.func,
-  disabled: React.PropTypes.bool,
-  href: React.PropTypes.string,
-  label: React.PropTypes.string,
-  style: React.PropTypes.oneOf(BUTTON_STYLES),
-  type: React.PropTypes.oneOf(BUTTON_TYPES)
+  children: PropTypes.any,
+  classes: PropTypes.array,
+  clickHandler: PropTypes.func,
+  disabled: PropTypes.bool,
+  href: PropTypes.string,
+  label: PropTypes.string,
+  style: PropTypes.oneOf(BUTTON_STYLES),
+  type: PropTypes.oneOf(BUTTON_TYPES)
 };
 
 const defaultProps = {

static_src/components/activity_log.jsx

@@ -1,4 +1,5 @@
 
+import PropTypes from 'prop-types';
 import React from 'react';
 
 import Action from './action.jsx';
@@ -39,8 +40,8 @@ function stateSetter(props) {
 }
 
 const propTypes = {
-  initialAppGuid: React.PropTypes.string.isRequired,
-  maxItems: React.PropTypes.number
+  initialAppGuid: PropTypes.string.isRequired,
+  maxItems: PropTypes.number
 };
 
 const defaultProps = {

static_src/components/activity_log_item.jsx

@@ -1,8 +1,8 @@
 
 import moment from 'moment-timezone';
 import style from 'cloudgov-style/css/cloudgov-style.css';
+import PropTypes from 'prop-types';
 import React from 'react';
-
 import createStyler from '../util/create_styler';
 import ElasticLine from './elastic_line.jsx';
 import ElasticLineItem from './elastic_line_item.jsx';
@@ -194,8 +194,8 @@ export default class ActivityLogItem extends React.Component {
 }
 
 ActivityLogItem.propTypes = {
-  domain: React.PropTypes.object,
-  item: React.PropTypes.object.isRequired,
-  route: React.PropTypes.object,
-  service: React.PropTypes.object
+  domain: PropTypes.object,
+  item: PropTypes.object.isRequired,
+  route: PropTypes.object,
+  service: PropTypes.object
 };

static_src/components/app_count_status.jsx

@@ -1,4 +1,5 @@
 
+import PropTypes from 'prop-types';
 import React from 'react';
 
 import createStyler from '../util/create_styler';
@@ -9,8 +10,8 @@ import { entityHealth } from '../constants.js';
 import { appHealth, worstHealth } from '../util/health';
 
 const propTypes = {
-  appCount: React.PropTypes.number,
-  apps: React.PropTypes.array
+  appCount: PropTypes.number,
+  apps: PropTypes.array
 };
 
 const defaultProps = {

static_src/components/app_list.jsx

@@ -1,4 +1,5 @@
 
+import PropTypes from 'prop-types';
 import React from 'react';
 
 import style from 'cloudgov-style/css/cloudgov-style.css';
@@ -103,7 +104,7 @@ export default class AppList extends React.Component {
 }
 
 AppList.propTypes = {
-  initialApps: React.PropTypes.array
+  initialApps: PropTypes.array
 };
 
 AppList.defaultProps = {