Fix replay not being closed when opened via URI scheme handler (fixes #92)

src/main/java/com/replaymod/replay/ReplayHandler.java

@@ -124,6 +124,8 @@ public class ReplayHandler {
 
         ReplayModReplay.instance.replayHandler = null;
 
+        mc.displayGuiScreen(null);
+
         FMLCommonHandler.instance().bus().post(new ReplayCloseEvent.Post(this));
     }
 

src/main/java/com/replaymod/replay/ReplayModReplay.java

@@ -181,6 +181,9 @@ public class ReplayModReplay {
     }
 
     public void startReplay(ReplayFile replayFile, boolean checkModCompat) throws IOException {
+        if (replayHandler != null) {
+            replayHandler.endReplay();
+        }
         if (checkModCompat) {
             ModCompat.ModInfoDifference modDifference = new ModCompat.ModInfoDifference(replayFile.getModInfo());
             if (!modDifference.getMissing().isEmpty() || !modDifference.getDiffering().isEmpty()) {