Log Message:
Update to 2.31.  Adjust HOMEPAGE/etc.  Add TEST_TARGET.

- 2.31 | 2011-05-29
  - bugfix: "make uninstall" now does a complete job
  - improvements to "make check"
    - do in-tree partial install; use that for ‘%load-path’
    - bugfix: re-order ‘%load-extensions’ to prioritize "" \ 
over ".scm"
  - examples/wily-guile also uses in-tree partial install

- 2.30 | 2011-02-12
  - portability fix for Guile 1.9.14 (among others, probably)

- 2.29 | 2011-01-24
  - portability fix: don't assume ‘(set! (P OBJ) V)’ returns ‘V’
  - allow ‘big-dishing-loop’ to set ‘modlisp-ish’ reply style
  - drop "experimental" from modlisp documentation
  - add "make check" support
  - use Guile-BAUX for doc maintenance, module munging

- 2.28 | 2010-06-22
  - new home page: http://www.nongnu.org/guile-www/
  - doc fix: variables now included in index (e.g., ‘CRLF’)
  - new EXPERIMENTAL modlisp support
    - ‘make-big-dishing-loop’ takes keyword arg #:style
    - ‘mouthpiece’ takes optional arg ‘style’
    - new module: (www server-utils modlisp)
  - new (www server-utils answer) procs
    - flat-length
    - tree-flat-length!
    - string<-tree
    - string<-headers
  - MARKED FOR REMOVAL 2011-12-31
    - proc ‘(www server-utils answer) string<-header-components’

- 2.27 | 2010-02-02
  - improve portability: don't use `return-it'
  - dropped (see entries for NEWS 2.24, 2.23)
    - module: (www data content-type)
    - (www data http-status) data structure: *http-status*-META
    - (www data http-status) data structure: *http-status*
    - `make-big-dishing-loop' keyword arg: #:GET-upath
  - maintenance uses GNU Autoconf 2.65