disable updating the build number in about-all.html everytime you build. needs to be turned on for official releases only until ckid/mcvs resource problem is solved. editing about-all.html causes file to be blown away.

build/mac/BuildMozillaDebug.pl

@@ -36,7 +36,9 @@ chdir("::::");
 # Make and popuplate the dist directory
 DistMozilla();
 
-SetBuildNumber();
+# Set the build number in about-all.html.  Commented out for now
+# until ckid/mcvs resource problem is resolved.
+# SetBuildNumber();
 
 # Now build the projects
 BuildMozilla();