pidgin/pidgin

Merged in fbellet/pidgin/port-changes-from-branch-2.x.y-to-default (pull request #632)

Port changes from branch 2.x.y to default

Approved-by: Eion Robb
Approved-by: John Bailey
Approved-by: Gary Kramlich
NULLSOURCES = [
'nullprpl.h',
'nullprpl.c'
]
# nullprpl isn't built by default; when it is built, it's dynamically linked
if DYNAMIC_NULL
null_prpl = shared_library('null', NULLSOURCES,
dependencies : [libpurple_dep, glib],
install : false, install_dir : PURPLE_PLUGINDIR)
endif