Log Message:
Updated p5-Net-IDN-Encode to 2.400.

2.400 (2017-01-01)
	- new release version
	- remove author tests
	- more spelling fixes

2.399_20161227
	- FIXES #119468: [PATCH] spelling fixes (reported by GREGOA)
	- possible fix for utf8 warnings under perl 5.8.x

2.399_20161210
	- update to Unicode 9.0.0
	- changed generation of tests so that TODO is no longer required when
	  the module author's perl doesn't support the newest Unicode version