today's Qt status update: non-standard conditions

Qt's status highlighting was treating any change to hunger or
to encumbrance as "worse" (shown in red).  That's wrong if you
go from weak to just hungry or from stressed to encumbered.

Comparing satiated with other hunger states is tricky.  I've
ranked it between hungry and weak but that's fairly arbitrary.

Also, change the highlighting when Lev, Fly, and Ride are new
conditions from red to blue.

win/Qt/qt_stat.h

@@ -135,14 +135,13 @@ private:
         QFrame vline2; // for statuslines:2, padding between Gold and Time
 
 	int cursy;
-
 	bool first_set;
         bool alreadyfullhp;
+
+        // for some fields, we need to know more than just "changed since
+        // last update"; there's no 'had_time' because Time isn't highlighted
         bool was_polyd;
         bool had_exp;
-        // Time isn't highlighted (due to constantly changing) so we don't
-        // keep track of whether it was On and is now Off or vice versa
-        //bool had_time;
         bool had_score;
 
         QHBoxLayout *InitHitpointBar();