Add fix to watch for VisibilityNotify events.

Fix XCB keyboard mapping size calculation

Uses the sink device names rather than the "Monitor of" names.

Closes jp9000/obs-studio#990

Closes jp9000/obs-studio#940

Checks if the system has Pulseaudio and enables support via the
HAVE_PULSEAUDIO flag.

Closes jp9000/obs-studio#940

Make *nix system info logging more like Windows/Mac

Closes jp9000/obs-studio#953

Closes jp9000/obs-studio#953

rtmp-services: Add looch.tv streaming platform

rtmp-services: Update ingest list for Restream.io

rtmp-services: Fix misspelled country name

This adds play/pause, restart, stop, next, and previous hotkeys to the
VLC source.

Closes jp9000/obs-studio#972

That had a misspell in a Twitch ingest server:
Col_u_mbia instead Col**o**mbia.
Incremented version.

Some encoders such as the AMD AMF encoder don't set their bitrate
property, so it gets returned as 0. This causes the new network code to
allocate a tiny buffer, resulting in output starvation and throttling
to the point of uselessness if low latency mode is also enabled.

rtmp-services: Add new twitch ingest servers

Fixes an issue where it would show the wrong error when the user entered
an invalid stream key, and logs it

Closes jp9000/obs-studio#1015

Closes jp9000/obs-studio#1015

rtmp-services: Update ingest list for Restream.io

obs-browser: version 1.30.1

Build with CEF 3112 on OSX

Fixes https://obsproject.com/mantis/view.php?id=508

The toggle_visibility set only by init_hotkeys() call, but used each
time in obs_sceneitem_destroy() call.  Because zero hotkey_pair_id is
valid - we need to set item property other than zero here.

Closes jp9000/obs-studio#1000

After the commit 3491487c obs_frontend_get_streaming_output()
returns NULL if "Start Streaming" button not pressed yet.  The code
would erroneously fail to update the recording/streaming status if
either one of them hadn't been activated yet.

Closes jp9000/obs-studio#999

If there are no slideshow items and this function is called, it would
cause a null pointer dereference.

This is a workaround for build server cmake build issues on mac/linux.
In the future, the build servers should specify the cmake variable.

Prevents a conflict with potentially existing plugins

Prevents an issue where forks would continually request data from the
obsproject server for ingest updates.

The Twitch ingest lookup file did not initialize the dynamic array or
mutex before using.

Currently if a file is partially written to (eg, the file is opened for
writing but the write fails), the updater won't correctly roll back to the
previous version, leaving the OBS install in an inconsistent state.

We now track failed installs or hash failures on patched files with a new
STATE_INSTALL_FAILED state and properly roll back on errors.

When updating large files such as libcef, the patching process can take a
decent amount of time. Previously the progress bar would remain at 100%
after completing the downloads, so the user may think the updater has
frozen. Now it shows the process of the install / patching process.