Implement upgrade request dialog

This is currently merely a placeholder for some real upgrade ui

webadmin/src/views/appstore.html

@@ -104,11 +104,10 @@
                 <div class="collapse" id="collapseResourceConstraint" data-toggle="false">
                     <h4 class="text-danger">This Cloudron is running low on resources.</h4>
                     <p>Installing this app might decrease the performance of other apps. The Cloudron's resources can be extended with a plan upgrade or available resources may be freed up by uninstalling unused applications.</p>
-                    <p>See available plans for upgrade at <a href="{{ config.webServerOrigin + '/pricing.html' }}" target="_blank">cloudron.io</a>.</p>
                 </div>
             </div>
             <div class="modal-footer">
-                <button type="button" class="btn btn-success pull-left" ng-show="!appInstall.installFormVisible && user.admin && appInstall.resourceConstraintVisible" ng-click="">Upgrade Cloudron</button>
+                <button type="button" class="btn btn-success pull-left" ng-show="!appInstall.installFormVisible && user.admin && appInstall.resourceConstraintVisible" ng-click="showRequestUpgrade()">Upgrade Cloudron</button>
                 <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
                 <button type="button" class="btn btn-danger" ng-show="!appInstall.installFormVisible && user.admin && appInstall.resourceConstraintVisible" ng-click="appInstall.showForm(true)">Install anyway</button>
                 <button type="button" class="btn btn-success" ng-show="!appInstall.installFormVisible && user.admin && !appInstall.resourceConstraintVisible" ng-click="appInstall.showForm()">Install</button>

webadmin/src/views/appstore.js

@@ -314,6 +314,11 @@ angular.module('Application').controller('AppStoreController', ['$scope', '$loca
         $('#appNotFoundModal').modal('show');
     };
 
+    $scope.showRequestUpgrade = function () {
+        $('#appInstallModal').modal('hide');
+        $('#upgradeModal').modal('show');
+    };
+
     $scope.gotoApp = function (app) {
         $location.path('/appstore/' + app.manifest.id, false).search({ version : app.manifest.version });
     };

webadmin/src/views/settings.html

@@ -107,6 +107,10 @@
                     <td class="text-right" style="vertical-align: top; white-space: nowrap;">{{ config.version }}</td>
                 </tr>
             </table>
+            <br/>
+            <br/>
+            <br/>
+            <button class="btn btn-primary pull-right" data-toggle="modal" data-target="#upgradeModal">Upgrade</button>
         </div>
     </div>
 </div>