Man page for bf_process_byfl_file()

bf_process_byfl_file() is the only function currently defined by the
API for parsing Byfl binary output files.  The man page describes in
great detail how to use the API.
Removed the callback_list_len argument from bf_process_byfl_file()

callback_list_len was being used as a crude sanity check that a client
program was compiled against the same version of the bfbin library
that's dynamically linked at run time.  I'm hopeful that simply
following the Libtool guidelines for versioning will prevent
compile-time vs. run-time library mismatches.

This version of Byfl was tested against revision 220498 of LLVM,
Clang, and DragonEgg.
Corrected function-table integer operations

The column called "Int_ops" incorrectly contained the total number of
operations.  This has now been corrected.

In addition, the binary output of the Function table has been
reordered and the column names spelled out to better match the Basic
Blocks table.