Use application/x-unknown when exporting TSV so that the browser just saves the result. This is good for large exports, which overload the browser if the browser tries to display them.

git-svn-id: http://google-refine.googlecode.com/svn/trunk@353 7d457c2a-affb-35e4-300a-418c747d4874

src/main/java/com/metaweb/gridworks/exporters/TsvExporter.java

@@ -17,7 +17,7 @@ import com.metaweb.gridworks.model.Row;
 
 public class TsvExporter implements Exporter {
     public String getContentType() {
-        return "text/plain";
+        return "application/x-unknown";
     }
     
     public boolean takeWriter() {