pidgin/pidgin

Merged in CMaiku/pidgin (pull request #162)

2016-10-25, Gary Kramlich
783878958371
Merged in CMaiku/pidgin (pull request #162)

Fix distcheck
installed_m4=purple.m4
EXTRA_DIST=$(installed_m4) as-ac-expand.m4
m4datadir=$(datadir)/aclocal
m4data_DATA=$(installed_m4)