This reverts commit 312fd2ea.

Accidental push

This reverts commit f4616df9.

Accidental push

Leftover from when this function was called
gupnp_service_proxy_send_action_list_gi

Fixes #23

Thanks for all the fish

If the action wasn't sent, do not crash

We always need to remove the action from the queue, this was not done on
error which could lead to a dangling pointer in the queue

call_action will not add a reference to action but just pass it through
so it is really transfer none

call_action_finish does not add a reference to the returned action, so
it is also transfer none for the return value

The control point otherwise may disappear out from under soup while
it's downloading.

Make sure that the host header matches the ip:port of the context.

This is in line with UDA (Host header is required and must match the
location url) and DLNA 7.2.24.1 (All communication has to use ip
addresses and not names)

Prevents DNS rebinding attacs against agains UPnP services

| ../gupnp-1.2.6/examples/get-volume.c: In function 'on_introspection':
| ../gupnp-1.2.6/examples/get-volume.c:53:17: error: format not a string literal and no format arguments [-Werror=format-security]
|    53 |                 g_critical (error->message);
|       |                 ^~~~~~~~~~
| ../gupnp-1.2.6/examples/get-volume.c:114:17: error: format not a string literal and no format arguments [-Werror=format-security]
|   114 |                 g_critical (error->message);
|       |                 ^~~~~~~~~~
| ../gupnp-1.2.6/examples/get-volume.c: In function 'main':
| ../gupnp-1.2.6/examples/get-volume.c:150:17: error: format not a string literal and no format arguments [-Werror=format-security]
|   150 |                 g_error (error->message);
|       |                 ^~~~~~~

Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>

Now that all the sources import a config.h, set the maximum version of
glib to be used to the currently minimum required one.

Throw a compilation error if a "deprecated" function is used, such as
when using functionality that's only available in newer versions than
the minimum one required.

Also parameterize it so it is consistent

This broke managed control points by not releasing the CP when the
context manger loses its last reference, causing the
available/unavailable callbacks being triggered on potentially freed
objects

More investigation needs to be done why this fix was needed

Revert "control-point: Hold a ref on control point while async downloading"

This reverts commit 4a68246f.