pidgin/pidgin

0efdb7833dee
Merge release-2.x.y branch into default.

Clean merge, apart from the .tx/config change that we don't want here.
For information on writing a plugin for Purple, Pidgin or Finch, go
https://developer.pidgin.im and click on API. From there, see the
HOWTOs in the "Related Pages" section.
You can also generate this documentation locally by installing
doxygen and graphviz dot, then running "make docs" in the
source tree. The documentation will be in the docs/html directory.