Windows CE port fixes/enhancements (from <Someone>)

A few other fixes:
- bug: text window does not scroll left on left arrow
- pcmain.c: fix warning: _fileno() returns void* in Windows CE SDK

3.5.0 only:
- files.c: compile error: don't include <signal.h> if NO_SIGNAL is defined. WinMo does not support POSIX signals
- version.c: compile error: append_port_id() is undeclared
- link error: mktime() is unsupported -> define it in celib.c

-<Someone>

sys/wince/winhcksp.rc

@@ -37,12 +37,12 @@ IDI_WINHACK             ICON    DISCARDABLE     "..\\..\\wince\\NETHACK.ICO"
 
 IDC_WINHACK MENU DISCARDABLE 
 BEGIN
-    MENUITEM "Type Cmd",                    IDM_DIRECT_COMMAND
+    MENUITEM "Entire Map",                  IDM_MAP_FIT_TO_SCREEN
     POPUP "Menu"
     BEGIN
         MENUITEM "Options",                     IDM_VIEW_OPTIONS
         MENUITEM "Keypad",                      IDM_VIEW_KEYPAD
-        MENUITEM "Cmd",                         IDM_CMD_DLG
+        MENUITEM "Cmd",                         IDM_DIRECT_COMMAND
 	MENUITEM SEPARATOR
         MENUITEM "ASCII",                       IDM_MAP_ASCII8X8
         MENUITEM "Tiles",						IDM_MAP_TILES
@@ -232,7 +232,7 @@ END
 IDC_WINHACK SHMENUBAR DISCARDABLE 
 BEGIN
     IDC_WINHACK, 2,
-    I_IMAGENONE, IDM_DIRECT_COMMAND, TBSTATE_ENABLED, TBSTYLE_AUTOSIZE, IDM_DIRECT_COMMAND, 0, NOMENU, 
+    I_IMAGENONE, IDM_MAP_FIT_TO_SCREEN, TBSTATE_ENABLED, TBSTYLE_AUTOSIZE, IDM_MAP_FIT_TO_SCREEN, 0, NOMENU, 
     I_IMAGENONE, ID_VIEW, TBSTATE_ENABLED, TBSTYLE_DROPDOWN | TBSTYLE_AUTOSIZE, IDS_CAP_VIEW, 0, 1,
 END
 
@@ -313,7 +313,6 @@ END
 STRINGTABLE DISCARDABLE 
 BEGIN
     IDM_MAP_FIT_TO_SCREEN   "Entire Map"
-    IDM_DIRECT_COMMAND   "Type Cmd"
     IDS_CAP_FILE            "File"
     IDS_CAP_HELP            "Help"
     IDS_CAP_MAP             "Map"