Restore ZEX to User Area 0 for BP Disk Image

ZEX.COM is required on user area 0 of BP disk images because it is used for startup processing prior to establishing a path to user area 15.

Source/Images/Build.cmd

@@ -1,7 +1,7 @@
 @echo off
 setlocal
 
-:: call BuildDisk.cmd bp hd wbw_hd1k
+:: call BuildDisk.cmd bp hd wbw_hd1k ..\zsdos\zsys_wbw.sys
 :: copy /b hd1k_prefix.dat + ..\..\Binary\hd1k_bp.img + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\hd1k_combo_bp.img || exit /b
 :: goto :eof
 

Source/Images/d_z3plus/ReadMe.txt

@@ -102,10 +102,3 @@ rather than a general purpose utility .e.g.
   - ALIAS.CMD - this one in particular contains config
   - CMDRUN.COM - effectivly config since it is a copy of one of 2 files
   - ?????
-
-
-
-
-
-
-

Source/Images/hd_bp.txt

@@ -6,6 +6,7 @@
 ../BPBIOS/*.zrl 0:
 ../BPBIOS/*.zex 0:
 ../BPBIOS/bpbuild.com 0:
+Common/Z3/u15/ZEX.COM 0:
 #
 # Add RomWBW utilities
 #