reset mouse pointer more decisively, for the sake of Mac OS X (despite the builtin policie of jEdit);

--- a/src/Tools/jEdit/src/rich_text_area.scala	Mon Mar 31 17:41:45 2014 +0200
+++ b/src/Tools/jEdit/src/rich_text_area.scala	Mon Mar 31 18:28:35 2014 +0200
@@ -122,7 +122,7 @@
           if (new_text_info.isDefined)
             text_area.getPainter.setCursor(Cursor.getPredefinedCursor(cursor.get))
           else
-            text_area.getPainter.resetCursor
+            text_area.getPainter.setCursor(Cursor.getPredefinedCursor(Cursor.TEXT_CURSOR))
         }
         for {
           r0 <- JEdit_Lib.visible_range(text_area)