Try to delete jump lists in "-cleanup".

[originally from svn r9050]

windows/winjump.c

@@ -663,7 +663,7 @@ static void update_jumplist_from_registry(void)
 }
 
 /* Clears the entire jumplist. */
-static void clear_jumplist(void)
+void clear_jumplist(void)
 {
     ICustomDestinationList *pCDL;
     UINT num_items;

windows/winnojmp.c

@@ -5,3 +5,4 @@
 
 void add_session_to_jumplist(const char * const sessionname) {}
 void remove_session_from_jumplist(const char * const sessionname) {}
+void clear_jumplist(void) {}

windows/winstore.c

@@ -779,6 +779,12 @@ void cleanup_all(void)
      */
     access_random_seed(DEL);
 
+    /* ------------------------------------------------------------
+     * Ask Windows to delete any jump list information associated
+     * with this installation of PuTTY.
+     */
+    clear_jumplist();
+
     /* ------------------------------------------------------------
      * Destroy all registry information associated with PuTTY.
      */

windows/winstuff.h

@@ -514,6 +514,7 @@ extern Backend serial_backend;
 #define JUMPLIST_SUPPORTED             /* suppress #defines in putty.h */
 void add_session_to_jumplist(const char * const sessionname);
 void remove_session_from_jumplist(const char * const sessionname);
+void clear_jumplist(void);
 
 /*
  * Extra functions in winstore.c over and above the interface in