Updating client dependencies. Switching to yarn. (#6433)

* Updating client dependancies. Switching to using yarn.

* Updating React

* Moving pure components to using function syntax (performance gains with newer react version)

* Updating client dependancies.

* Ignore .yarninstall

* Enabling pre-lockfile because it's the entire point of using yarn.

* Removing old webpack config

* Moving to new prop-types

* Fixing ESLint Errors

* Updating jest snapshots.

* Cleaning up package.json

3 files changed, 18 insertions, 12 deletions

diff --git a/webapp/components/admin_console/manage_teams_modal/manage_teams_dropdown.jsx b/webapp/components/admin_console/manage_teams_modal/manage_teams_dropdown.jsx
index e9ddf621c..e58a2c43d 100644
--- a/webapp/components/admin_console/manage_teams_modal/manage_teams_dropdown.jsx
+++ b/webapp/components/admin_console/manage_teams_modal/manage_teams_dropdown.jsx
@@ -1,3 +1,5 @@
+import PropTypes from 'prop-types';
+
 // Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
@@ -11,11 +13,11 @@ import * as Utils from 'utils/utils.jsx';
 
 export default class ManageTeamsDropdown extends React.Component {
     static propTypes = {
-        user: React.PropTypes.object.isRequired,
-        teamMember: React.PropTypes.object.isRequired,
-        onError: React.PropTypes.func.isRequired,
-        onMemberChange: React.PropTypes.func.isRequired,
-        onMemberRemove: React.PropTypes.func.isRequired
+        user: PropTypes.object.isRequired,
+        teamMember: PropTypes.object.isRequired,
+        onError: PropTypes.func.isRequired,
+        onMemberChange: PropTypes.func.isRequired,
+        onMemberRemove: PropTypes.func.isRequired
     };
 
     constructor(props) {
diff --git a/webapp/components/admin_console/manage_teams_modal/manage_teams_modal.jsx b/webapp/components/admin_console/manage_teams_modal/manage_teams_modal.jsx
index 0c30203b4..9012c27e5 100644
--- a/webapp/components/admin_console/manage_teams_modal/manage_teams_modal.jsx
+++ b/webapp/components/admin_console/manage_teams_modal/manage_teams_modal.jsx
@@ -1,3 +1,5 @@
+import PropTypes from 'prop-types';
+
 // Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
@@ -19,9 +21,9 @@ import RemoveFromTeamButton from './remove_from_team_button.jsx';
 
 export default class ManageTeamsModal extends React.Component {
     static propTypes = {
-        onModalDismissed: React.PropTypes.func.isRequired,
-        show: React.PropTypes.bool.isRequired,
-        user: React.PropTypes.object
+        onModalDismissed: PropTypes.func.isRequired,
+        show: PropTypes.bool.isRequired,
+        user: PropTypes.object
     };
 
     constructor(props) {
diff --git a/webapp/components/admin_console/manage_teams_modal/remove_from_team_button.jsx b/webapp/components/admin_console/manage_teams_modal/remove_from_team_button.jsx
index d95a816f2..28e9fde8f 100644
--- a/webapp/components/admin_console/manage_teams_modal/remove_from_team_button.jsx
+++ b/webapp/components/admin_console/manage_teams_modal/remove_from_team_button.jsx
@@ -1,3 +1,5 @@
+import PropTypes from 'prop-types';
+
 // Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
@@ -8,10 +10,10 @@ import {removeUserFromTeam} from 'actions/team_actions.jsx';
 
 export default class RemoveFromTeamButton extends React.PureComponent {
     static propTypes = {
-        onError: React.PropTypes.func.isRequired,
-        onMemberRemove: React.PropTypes.func.isRequired,
-        team: React.PropTypes.object.isRequired,
-        user: React.PropTypes.object.isRequired
+        onError: PropTypes.func.isRequired,
+        onMemberRemove: PropTypes.func.isRequired,
+        team: PropTypes.object.isRequired,
+        user: PropTypes.object.isRequired
     };
 
     constructor(props) {