Qt's window menus

Qt on OSX is inserting "Search [_____]" as the first entry in
the Help dropdown menu (the one in the toolbar at the top of the
desttop).  While trying--and failing--to figure out how to get
rid of that, I cleaned up a little bit of the old menu hackery
(that tries to workaround the fact that Qt on OSX insists that
some menu actions--based solely on their names--should go into
the appication menu rather than whichever menu the program is
trying to insert them into).  The only observeable difference
is that 'About NetHack-Qt' will be at the top (actually second
because of that Search one) of the Help dropdown, where it is on
non-OSX builds, rather than last.

This tries to make the program name consistent too, changing
several instances of "Qt NetHack" to be "NetHack-Qt".  The latter
is the name being set up as ApplicationName in qt_bind.cpp that
gets used when Qt stashes the Qt-specific settings wherever it
stashes them.

It also makes another tweak in formatting of 'About NetHack-Qt',
inserting one explicit line break to avoid some poor looking line
wrapping.  I still haven't figured out how to control that popup's
size.

win/Qt/Qt-issues.txt

@@ -26,6 +26,12 @@ around by giving focus to some other application (which will put up
 its own menu bar) and then back to nethack (thereby reloading nethack's
 menu bar).
 
+On OSX, a "Search [______]" action is inserted as the first entry of
+the dropdown Help menu on the toolbar.  NetHack has no control over
+what it does or where it looks, so it should be eliminated somehow.
+(It is not releated to nethack's search command, nor the interception
+of an attempt to insert "Search" into the dropdown Action menu.)
+
 Sometimes scrolling a menu leaves the displayed text not matching what
 nethack thinks is displayed, so making a selection by mouse click may
 occasionally pick the wrong item.  There's usually a visual clue when