Log Message:
Updated p5-JSON to 2.92.

2.92 2017-05-15
    - production release

2.91_04 2017-01-10
	- updated backportPP with JSON::PP 2.91_04

2.91_03 2017-01-09
	- reworked documentation, based on the one for JSON::XS
	- updated backportPP with JSON::PP 2.91_03

2.91_02 2016-12-04
	- fixed not to fail tests under Perl 5.25.* (srezic++)

2.91_01 2016-12-03
	- PERL_JSON_BACKEND now accepts Cpanel::JSON::XS as well
	- tweaked tests to support various backends
	- made convert_blessed_universally (for Perl 5.18+) and
	  support_by_pp less harmful
	- fixed N/A exit code in Makefile.PL (bulk88)
	- various doc patches from gregoa, topaz, zoffix, singingfish,
	  yanick, dsteinbrunner, Toby Inkster
	- removed duplicated tests
	- removed base.pm dependency
	- updated backportPP with JSON::PP 2.91_01