ARI/AMI: Include language in standard channel snapshot output

The CHANGES verbiage for the "language" addition had been put under the wrong
release. This moves it to be under 13.1 to 13.2 changes.

ASTERISK-24553
Reported by: Matt Jordan
........

Merged revisions 429387 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@429388 f38db490-d61c-443f-a65b-d21fe96a405b