pidgin/pidgin

Update the ChangeLog and configure.ac for release
release-2.x.y v2.14.2
2021-04-01, Gary Kramlich
2eb25613d054
Update the ChangeLog and configure.ac for release

Testing Done:
Ran `make dist-check` locally.

Reviewed at https://reviews.imfreedom.org/r/590/
For information on hacking on Pidgin, Finch, or libpurple, see:
http://developer.pidgin.im