Eugh. Create the sepwin before the recwin

The sepwin depends on a value computed by the recwin's draw handler.
This is kinda nasty...

doc/owl-window.txt

@@ -174,3 +174,8 @@ Known issues and notes
   ids. This is somewhat a side effect of us not using GObject
   everywhere; the signals can automatically disconnect in the right
   contexts if we do.
+
+- The sepbar depends on a value computed while the mainwin is drawn,
+  so we currently ensure the windows are created in the right order
+  for the repaints to occur correctly. This is rather poor and should
+  be refactored later.

mainpanel.c

@@ -4,8 +4,10 @@ void owl_mainpanel_init(owl_mainpanel *mp)
 {
   /* Create windows */
   mp->panel = owl_window_new(NULL);
-  mp->recwin = owl_window_new(mp->panel);
+  /* HACK for now: the sepwin must be drawn /after/ the recwin for
+   * lastdisplayed to work */
   mp->sepwin = owl_window_new(mp->panel);
+  mp->recwin = owl_window_new(mp->panel);
   mp->msgwin = owl_window_new(mp->panel);
   mp->typwin = owl_window_new(mp->panel);