Log Message:
Update p5-JSON to 1.15.

1.15  Wed Nov 14 14:52:31 2007
	[JSON]
	- modified a bug (rt#28434: UTF-8 handling severly broken)
            but recommend to use JSON::PP instead of JSON (with JSON::Converter)
            as JSON::Converter's utf8 handling is incomplete.
	- fixed rt#29139 (unary boolean negation generates)
            objToJson([!1])  => [""]
            objToJson([!!1]) => ["1"]
	- fixed doc (rt#21038: QuotApos documentation is flawed)

        [JSON::PP]
	- updated JSON::PP for compatible to JSON::XS 1.52
              adding max_size, relaxed, allow_blessed, convert_blessed,
                     filter_json_object, filter_json_single_key_object
	- modified a JSON::PP bug (rt#29988 JSON::PP recursion depth bug)
        - Now JSON::PP's max_depth default value is 512.
	- Now JSON::PP mapping policy is compatible to JSON::XS
	- JSON:PP's allow_tie is obsoleted.