Ivan - Fix some issues related to no user system [skip ci]

client/src/app/main/dashboard/dashboard-article/dashboard-article-page.js

@@ -42,12 +42,12 @@ class DashboardArticlePage extends React.Component {
 
         return (
             <div className={this.getClass()}>
-                <Widget>
+                <Wrapper>
                     <div className="dashboard-article-page__breadcrumb">
                         <BreadCrumb items={this.getBreadCrumbItems()}/>
                     </div>
                     {(this.props.loading) ? <Loading /> : this.renderContent()}
-                </Widget>
+                </Wrapper>
             </div>
         );
     }

client/src/app/main/main-layout-header.js

@@ -32,7 +32,7 @@ class MainLayoutHeader extends React.Component {
             result = (
                 <div className="main-layout-header__login-links">
                     <Button type="clean" route={{to:'/'}}>{i18n('LOG_IN')}</Button>
-                    {this.props.config === true ? <Button type="clean" route={{to:'/signup'}}>{i18n('SIGN_UP')}</Button> : null}
+                    {(this.props.config['registration'] === true) ? <Button type="clean" route={{to:'/signup'}}>{i18n('SIGN_UP')}</Button> : null}
                 </div>
             );
         }

client/src/data/fixtures/system-fixtures.js

@@ -19,6 +19,7 @@ module.exports = [
                         'smtp-port': '7070',
                         'smtp-user': 'Wesa',
                         'maintenance-mode': false,
+                        'user-system-enabled': true,
                         'allow-attachments': true,
                         'registration': true,
                         'max-size': 500,
@@ -41,7 +42,8 @@ module.exports = [
                         'layout': 'Boxed',
                         'reCaptchaKey': '6LfM5CYTAAAAAGLz6ctpf-hchX2_l0Ge-Bn-n8wS',
                         'maintenance-mode': false,
-                        'user-system-enabled': false,
+                        'user-system-enabled': true,
+                        'registration': true,
                         'departments': [
                             {id: 1, name: 'Sales Support', owners: 2},
                             {id: 2, name: 'Technical Issues', owners: 5},