pidgin/pidgin

Pull the purple_markup_* api out of util.[ch] to purplemarkup.[ch]. No code was changed just moved it from one file to the other.

Testing Done:
Compile and unit tests.

Reviewed at https://reviews.imfreedom.org/r/171/
gestures_SOURCES = [
'gestures.c',
'gstroke.h',
'gstroke-internal.h',
'stroke.c',
'stroke-draw.c'
]
if PLUGINS
gestures = library('gestures', gestures_SOURCES,
dependencies : [libpurple_dep, libpidgin_dep, glib],
name_prefix : '',
install : true, install_dir : PIDGIN_PLUGINDIR)
endif