Allow Tls11 and abort modder thread when quitting

Author: 0x0ade

src/MainForm.cs

@@ -564,8 +564,8 @@ private void MinimizeButton_Click(object sender, EventArgs e) {
         }
 
         private void CloseButton_Click(object sender, EventArgs e) {
-            if (Status == InstallerStatus.Progress)
-                return;
+            if (_ModderThread != null && _ModderThread.IsAlive)
+                _ModderThread.Abort();
             Close();
         }
 

src/Program.cs

@@ -15,7 +15,7 @@ static class Program {
         /// </summary>
         [STAThread]
         static void Main(string[] args) {
-            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
+            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
 
             const string logDefaultName = "installer-log.txt";
             string log = Path.GetFullPath(logDefaultName);