Improve docs of Fl::hide_all_windows()

+ update fluid dependencies

No code changes.

fluid/makedepend

@@ -353,6 +353,7 @@ factory.o: ../FL/Fl_Button.H
 factory.o: ../FL/Fl_Cairo.H
 factory.o: ../FL/fl_casts.H
 factory.o: ../FL/Fl_Check_Browser.H
+factory.o: ../FL/Fl_Choice.H
 factory.o: ../FL/Fl_Clock.H
 factory.o: ../FL/fl_config.h
 factory.o: ../FL/Fl_Counter.H
@@ -370,6 +371,10 @@ factory.o: ../FL/Fl_Help_View.H
 factory.o: ../FL/Fl_Image.H
 factory.o: ../FL/Fl_Input.H
 factory.o: ../FL/Fl_Input_.H
+factory.o: ../FL/Fl_Input_Choice.H
+factory.o: ../FL/Fl_Menu_.H
+factory.o: ../FL/Fl_Menu_Bar.H
+factory.o: ../FL/Fl_Menu_Button.H
 factory.o: ../FL/Fl_Menu_Item.H
 factory.o: ../FL/Fl_Multi_Label.H
 factory.o: ../FL/Fl_Output.H
@@ -410,7 +415,9 @@ factory.o: code.h
 factory.o: factory.h
 factory.o: Fd_Snap_Action.h
 factory.o: fluid.h
+factory.o: Fl_Button_Type.h
 factory.o: Fl_Group_Type.h
+factory.o: Fl_Menu_Type.h
 factory.o: Fl_Type.h
 factory.o: Fl_Widget_Type.h
 factory.o: Fl_Window_Type.h

src/Fl.cxx

@@ -14,9 +14,9 @@
 //     https://www.fltk.org/bugs.php
 //
 
-/** \file
- Implementation of the member functions of class Fl.
- */
+/** \file src/Fl.cxx
+  Implementation of the member functions of class Fl.
+*/
 
 #include <FL/Fl.H>
 #include <FL/platform.H>
@@ -672,11 +672,14 @@ int Fl::ready()
   return system_driver()->ready();
 }
 
-/** Hide all visible window to make FLTK leav Fl::run().
- Fl:run() will run as long as there are visible windows. Call hide_all_windows()
- will hide all windows, effectively terminating the Fl::run() loop.
- \see Fl::run()
- */
+/** Hide all visible windows to make FLTK leave Fl::run().
+
+  Fl:run() will run as long as there are visible windows.
+  Call Fl::hide_all_windows() to hide (close) all currently shown
+  (visible) windows, effectively terminating the Fl::run() loop.
+  \see Fl::run()
+  \since 1.4.0
+*/
 void Fl::hide_all_windows() {
   while (Fl::first_window()) {
     Fl::first_window()->hide();