public GithubExplorerRibbon(
     ITaskPaneContentHost contentHost,
     ISettingsViewModel settingsViewModel,
     Func <ICreateIssueViewModel> createIssuesViewModelFactory)
 {
     this.contentHost                  = contentHost;
     this.settingsViewModel            = settingsViewModel;
     this.createIssuesViewModelFactory = createIssuesViewModelFactory;
 }
 public GithubExplorerRibbon(
     ITaskPaneContentHost contentHost, 
     ISettingsViewModel settingsViewModel, 
     Func<ICreateIssueViewModel> createIssuesViewModelFactory)
 {
     this.contentHost = contentHost;
     this.settingsViewModel = settingsViewModel;
     this.createIssuesViewModelFactory = createIssuesViewModelFactory;
 }