refresh installations on Update list refresh, change updates header text to Released

Author: unitycoder

UnityLauncherPro/MainWindow.xaml

@@ -535,7 +535,7 @@
 							<CommandBinding Command="ApplicationCommands.Copy" Executed="CopyRowFolderToClipBoard" CanExecute="CanExecute_Copy"/>
 						</DataGrid.CommandBindings>
 						<DataGrid.Columns>
-							<DataGridTextColumn Binding="{Binding ReleaseDate, StringFormat=\{0:dd/MM/yyyy\}}" ClipboardContentBinding="{x:Null}"  MinWidth="100" Header="ReleaseDate" IsReadOnly="True"/>
+							<DataGridTextColumn Binding="{Binding ReleaseDate, StringFormat=\{0:dd/MM/yyyy\}}" ClipboardContentBinding="{x:Null}"  MinWidth="100" Header="Released" IsReadOnly="True"/>
 							<DataGridTextColumn Binding="{Binding Version}" ClipboardContentBinding="{x:Null}" Header="Version" IsReadOnly="True" MinWidth="222">
 								<DataGridTextColumn.CellStyle>
 									<Style TargetType="{x:Type DataGridCell}">

UnityLauncherPro/MainWindow.xaml.cs

@@ -486,6 +486,9 @@ private void OnGetUnityUpdatesClick(object sender, RoutedEventArgs e)
             var button = (Button)sender;
             button.IsEnabled = false;
 
+            // refresh installations, if already added some new ones
+            UpdateUnityInstallationsList();
+
             CallGetUnityUpdates();
 
             button.IsEnabled = true;