Log Message:
Updating converters/p5-JSON-XS from 2.290nb1 to 2.300

Upstream changes:
2.3   Wed Aug 18 01:26:47 CEST 2010
	- make sure decoder doesn't change the decoding in the incremental
          parser (testcase provided by Hendrik Schumacher).
	- applied patch by DaTa for Data::Dumper support in json_xs.
        - added -t dump support to json_xs, using Data::Dump.
        - added -f eval support to json_xs.