[GBBopen-announce] GBBopen Version 1.4

[Dan Corkill]

GBBopen Version 1.4 is released.  Version 1.4 provides support for
link-pointer objects in unit-instance link slots. Version 1.4 also
includes the following changes:

   * Changes to gbbopen-modules directory processing
      - New *IGNORED-GBBOPEN-MODULES-DIRECTORY-SUBDIRECTORIES* global
        variable

  * Changes to GBBopen Tools
      - New *DISABLE-WITH-ERROR-HANDLING* global variable
      - New DOSUBLISTS macro
      - New :all-numeric, :include-day, and :full-names arguments to
        FULL-DATE-AND-TIME

   * Changes to Portable Threads
      - New SPAWN-FORM macro
      - New constant NEARLY-FOREVER-SECONDS
      - New function SLEEP-NEARLY-FOREVER
      - CLISP MT support (thanks to Vladimir Tzankov)

   * Changes to GBBopen
      - New LINK-INSTANCE-OF generic function
      - New DESCRIBE-INSTANCE-SLOT-VALUE generic function
      - Abbreviated + specifier for :plus-subclasses and :plus-subevents
      - Abbreviated = specifier for :no-subclasses and :no-subevents

See the CHANGES file (http://gbbopen.org/svn/GBBopen/trunk/CHANGES)
and the GBBopen Reference (http://gbbopen.org/hyperdoc/)for more
changes and details.

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