Document the new way of building with Borland Builder.

 Borland C++ builder 3 and 4

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 There are two alternatives.  With Borland C++ Builder, Borland make and nasm,

 you can build with optimized assembler by doing the following:

 * Configure for building with Borland Builder:

   > perl Configure BC-32

 * Create the appropriate makefile

   > ms\do_nasm

 * Build

   > make -f ms\bcb.mak

 The other (older) alternative builds using GNU make and doesn't use the

 optimized assembler code.  You use it by doing the following:

 * Setup PATH. First must be GNU make then bcb4/bin 

 * Run ms\bcb4.bat