Update from logs.

      variants (x87/sse2, unicode/8-bit).

    - LISP::ENUMERATE-MATCHES had a keyword arg named

      :VERIFY-EXISTANCE.  This has been changed to :VERIFY-EXISTENCE. 

    - Added -unidata command line option to allow user to specify the

      unidata.bin file to be used instead of the default one.

    - :CMUCL is now in *FEATURES*.

  * ANSI compliance fixes:

    - Fixes for signaling errors with READ-CHAR and READ-BYTE

    - SET-SYSTEM-EXTERNAL-FORMAT was not actually setting the filename

      encoding if given.

    - SUBSEQ with an end index less than the start index sometimes

      crashes CMUCL. Now, signal an error if the boudns are not

      crashes CMUCL. Now, signal an error if the bounds are not

      valid. 

    - Localization support was causing many calls to stat trying to

      find non-existent translation files.  This has been fixed so

      because the function is in one of CMUCL's internal

      implementation packages.  If you know what you're doing, you can

      use the trace option :encapsulate nil to trace them.  Tracing

      functions used by TRACE can cause bad things.

      functions used by TRACE can cause bad things to happen.

    - In some situations the compiler could not constant fold SQRT

      calls because KERNEL:%SQRT was not defined on x86 with SSE2.

      Fix this by making sure KERNEL:%SQRT is defined.

    - Opening a file whose name contains "[" with :IF-EXISTS

      :NEW-VERSION no longer causes an error.

  * Trac Tickets:

    - #43: unread-char doesn't change file-position