Log Message:
Update to 3b4 (pkgsrc 3.2.4):

slib-3b4 news:

slib-3b4 is a minor release.  Details at
<http://cvs.savannah.gnu.org/viewvc/*checkout*/slib/slib/ChangeLog>

  From Andy Wingo
  * guile-2.init, guile.init: Factor an initialization file for Guile
    2.0 and later out of guile.init.  This does not change the
    interface, though -- loading guile.init will load guile-2.init if
    appropriate, and otherwise executes its own code.
  * slib.nsi, Makefile (ifiles): Update build scripts.

  From Pierpaolo Bernardi
  * wttree.scm (wt-tree/union-merge): Added from MIT-Scheme; updated license.

  From Kazu Yamamoto
  * wttree.scm: Fixed bug where tree balance was lost by deletions
    <http://hagi.is.s.u-tokyo.ac.jp/~yh/bst.pdf>.
  * wttree-test.scm (prop-wt-tree/index): Now covers everything which
    wttest.scm does, replacing wttest.scm.

  From Bill Schottstaedt (using Scheme-lint)
  * Cleaned up and removed unused variables from 10 files

  From Aubrey Jaffer  <agj@alum.mit.edu>
  * slib.sh, gosh.init: Added support for (gosh) Gauche-0.9.
  * mitscheme.init: Removed support for defmacro when
    (mit-scheme-release >= 9 0).
  * Makefile (snapdir, infodir, htmldir): Added defaults so make works
    with empty "config.status".
  * strsrch.scm (substring?, substring-ci?): Replaced the
    skip-vector with an alist (to work with wide characters).
  * scanf.scm (*scanf): Handle array-ref argument expressions.
  * logical.scm (integer->list): Negative k not allowed.
  * structure.scm (define-structure): Reconciled with documentation.
  * grapheps.ps (whole-page): Extract bounds from %%BoundingBox.
    Squelch trailing .0 in axis numbers.
  * grapheps.scm, grapheps.ps (plot-text-column): Added.
    (set-font): Take optional "encoding" argument.
  * uri.scm (uri:decode-query): Don't split values on cr.
  * mkclrnam.scm (load-rgb-txt): Added methods for XKCD dictionary,
    "bang" dictionary, FED-STD-595C, and "ntc.js".
  * colorspc.scm (L*a*b*:DE*94): From
    <http://www.brucelindbloom.com/index.html?Eqn_DeltaE_CIE94.html>
    replaced wedged L*C*h:DE*94.