Update ruby-json to 1.8.0.

2013-05-13 (1.8.0)
  * Fix flori/json#162 reported by Marc-Andre
    Lafortune <github_rocks@marc-andre.ca>. Thanks!
  * Applied patches by Yui NARUSE <naruse@airemix.jp> to suppress warning with
    -Wchar-subscripts and better validate UTF-8 strings.
  * Applied patch by ginriki@github to remove unnecessary if.
  * Add load/dump interface to JSON::GenericObject to make
        serialize :some_attribute, JSON::GenericObject
    work in Rails active models for convenient SomeModel#some_attribute.foo.bar
    access to serialised JSON data.

textproc/ruby-json/Makefile

@@ -1,6 +1,6 @@
-# $NetBSD: Makefile,v 1.24 2013/02/12 13:13:08 taca Exp $
+# $NetBSD: Makefile,v 1.25 2013/06/13 13:15:49 obache Exp $
 
-DISTNAME=	json-1.7.7
+DISTNAME=	json-1.8.0
 CATEGORIES=	textproc
 
 MAINTAINER=	pkgsrc-users@NetBSD.org

textproc/ruby-json/distinfo

@@ -1,6 +1,6 @@
-$NetBSD: distinfo,v 1.20 2013/02/12 13:13:08 taca Exp $
+$NetBSD: distinfo,v 1.21 2013/06/13 13:15:49 obache Exp $
 
-SHA1 (json-1.7.7.gem) = eba67a79ca1590b18db5a73171857a41fd3685f0
-RMD160 (json-1.7.7.gem) = 3b2343b1a99c5d870b08966c5c68a47b1d285c5c
-Size (json-1.7.7.gem) = 148480 bytes
+SHA1 (json-1.8.0.gem) = 3a779960a48b1a4d9bf6451206af681d039c9659
+RMD160 (json-1.8.0.gem) = 74291b0aae0bfbb5b852f6d7c3292e255e06c3a3
+Size (json-1.8.0.gem) = 148992 bytes
 SHA1 (patch-ab) = c80a2a7a1ae78e98dd7d6982a2e5da8963a214d6