PLT-4767 Implement MFA Enforcement (#4662)

* Create MFA setup page and remove MFA setup from account settings modal

* Add enforce MFA to system console and force redirect

* Lockdown mfa required API routes, add localization, other changes

* Minor fixes

* Fix typo

* Fix some unit tests

* Fix more unit tests

* Minor fix

* Updating UI for MFA screen (#4670)

* Updating UI for MFA screen

* Updating styles for MFA page

* Add the ability to switch between email/sso with MFA enabled

* Added mfa change email

* Minor UI updates for MFA enforcement

* Fix unit test

* Fix client unit test

* Allow switching email to ldap and back when MFA is enabled

* Fix unit test

* Revert config.json

webapp/components/mfa/mfa_controller.jsx

@@ -0,0 +1,66 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import React from 'react';
+import {FormattedMessage} from 'react-intl';
+import {browserHistory, Link} from 'react-router/es6';
+
+import logoImage from 'images/logo.png';
+
+export default class MFAController extends React.Component {
+    componentDidMount() {
+        if (window.mm_license.MFA !== 'true' || window.mm_config.EnableMultifactorAuthentication !== 'true') {
+            browserHistory.push('/');
+        }
+    }
+
+    render() {
+        let backButton;
+        if (window.mm_config.EnforceMultifactorAuthentication !== 'true') {
+            backButton = (
+                <div className='signup-header'>
+                    <Link to='/'>
+                        <span className='fa fa-chevron-left'/>
+                        <FormattedMessage
+                            id='web.header.back'
+                        />
+                    </Link>
+                </div>
+            );
+        }
+
+        return (
+            <div className='inner-wrap sticky'>
+                <div className='content'>
+                    <div>
+                        {backButton}
+                        <div className='col-sm-12'>
+                            <div className='signup-team__container'>
+                                <h3>
+                                    <FormattedMessage
+                                        id='mfa.setupTitle'
+                                        defaultMessage='Multi-factor Authentication Setup'
+                                    />
+                                </h3>
+                                <img
+                                    className='signup-team-logo'
+                                    src={logoImage}
+                                />
+                                <div id='mfa'>
+                                    {React.cloneElement(this.props.children, {})}
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        );
+    }
+}
+
+MFAController.defaultProps = {
+};
+MFAController.propTypes = {
+    location: React.PropTypes.object.isRequired,
+    children: React.PropTypes.node
+};