;;; Retrieve Gauche Releases
;;;
;;; VERSION can be a version string (e.g. 0.9.5), or a word `latest'
;;; or `snapshot'.
;;;
;;; https://practical-scheme.net/gauche/releases
;;; https://practical-scheme.net/gauche/releases/.json
;;; https://practical-scheme.net/gauche/releases/.txt
;;; Returns available versions in html, json and text (one version per line)
;;;
;;; https://practical-scheme.net/gauche/releases/VERSION{.suffix}
;;; Returns information of VERSION, depending on the suffix.
;;;
;;; suffix can be:
;;; .html - returns metainfo in html
;;; .json - returns metainfo in json
;;; .tgz - returns tarball (via redirect)
;;; .txt - returns version string in text. useful for `latest' and
;;; `snapshot'.
;;; .32bit.msi, .64bit.msi - returns Windows installer (via redirect)
;;;
;;; If VERSION isn't available, 404 is returned.
;;;
Available versions: