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The memory must be allocated with g_malloc() as we will free it again
later with g_free(), as such allocate and copy the array that is passed
in.

Avoiding:
	error CS0104: `Range' is an ambiguous reference between `System.Range' and `Gtk.Range`

This changes the API.

Without this change all usage will cause memory corruption and simply
does not work.

For some reason bindinator doesn't properly detect that the `func`
passed in gst_promise_new_with_change_func is a closure and what the
destroy function is (because it is a constructor?)

Mark it manually.

From suggestion from Alex Dircksen: #9 (comment 166633)

Fixes #9

Generated files were generated using 'ninja -C build update-code'
except for libgstfft, which had to be updated manually
(see issue #25).

Note: with these changes, building on MS Windows will require
the msvc compiler - mingw will no longer work.

We require 0.48 and this was added in 0.47

environment().prepend() does not stack. None of the operations on that
object stack. This is documented in the Meson reference manual. Also
avoid overriding previously-set operations because that will cause
a warning in a future version of Meson.

Also, we do not need to manually construct MONO_PATH values. We can
pass an array and have Meson construct it for us.

This commit adds a .gitlab-ci.yml file, which uses a feature
to fetch the config from a centralized repository. The intent is
to have all the gstreamer modules use the same configuration.

The configuration is currently hosted at the gst-ci repository
under the gitlab/ci_template.yml path.

Part of gstreamer-project#29

We use 'features' now

List of files in sources/meson.build is now aphabetically ordered.

Making it simpler to update it

A custom sink is set after starting playback and the equalizer has no effect.

https://bugzilla.gnome.org/show_bug.cgi?id=796690

Some private fields in the structure where renamed.

Hide the following method that were previously totally broken and
now are wrongly auto generated (and fail to build):

    gst_rtsp_message_parse_auth_credentials
    gst_audio_ring_buffer_prepare_read