Instead, quit only when the main window has been fully closed (and not
minimized to tray).  Fixes a bug where if the main window is minimized
to tray and another non-child window is open (for example, the stats
window), and then that window is closed, would cause the program to
prematurely exit and crash.

(This commit also modifies the decklink, linux-v4l2, mac-avcapture,
obs-ffmpeg, and win-dshow modules)

Originally, async buffering for sources was supposed to be a
user-controllable flag.  However, that turned out to be less than ideal
because sources (such as the win-dshow plugin) were programmed with
automatic control over their buffering (such as automatically detecting
USB 2.0 capture devices and then enabling in those cases).

The fact that it was a flag caused a design flaw to where buffering
values would be overwritten when a source is loaded from save data.

Because of that, this flag is being deprecated and replaced with a
specific function to enable unbuffered mode instead.

This reverts commit d85224bb.

Would cause other flags to stop saving.  Buffering needs to be split off
from the source flags.

If the menu item is triggered again, just bring it to the front instead
of trying to recreate it again.

This is the only case where the button's name does not match the
locale's text, the button name being "Ok" and the locale text item being
"OK", fully capitalized.

Instead of QMessageBox::question and QMessageBox::information, use the
OBSMessageBox class, which translates all buttons.

Shows performance stats, and streaming/recording stats, and helps warn
the user when they have less-than-optimal values with coloring on the
values (e.g. yellow when getting low on disk space, red when getting
really low)

Allows seeing statistics such as bitrate and total bytes saved for
recording outputs.

Returns whether the output is currently in a state of reconnecting or
not.

Useful for rendering statistics.

Useful for real-time rendering statistics

'device->cur_swap' can be null in this function, and gl_getclientsize
expects it not to be null.

A convenient feature if the user wants to trigger the media to play back
on the fly for whatever reason.

Ingest URLs are the same for now.

Decklink fixes

Using bitfields causes less optimized code generation and the memory
savings are minimal as none of the objects are instantiated enough
times to be worth it.

See https://blogs.msdn.microsoft.com/oldnewthing/20081126-00/?p=20073

Prevents random OS cursors showing if someone alt+tabs out of a game but
still moves their cursor over the captured area (possibly fullscreen).

Remove two unused variables that are causing a compiler warning on gcc.
The size was probably added in the past to calculate the the packet
size, but in the end was not actually needed.

Add an option to the cmake build system to disable the plugin. This is
needed on arm, as the plugin uses x86-intrinsics.

Fix a warning from gcc about one of the const keywords being ignored.
This happens because the returned type is not a reference contrary to
the methods above.

This fixes a case where the user sets an IP but then that IP is no longer
valid, resulting in OBS showing "Default" in the settings but still trying
to bind to the invalid IP internally.

CI: OSX - Use wget instead of curl

libobs: Fix os_safe_replace not working linux

Make sure the target file exists before attempting to create a backup.
This will allow for the function to work correctly if the target does
not yet exist.

Possible fix for "curl: (56) SSLRead()" errors on Travis.
[skip appveyor]

The auto-configuration wizard is designed to allow first-time or
novice/uneducated users or to set up video and encoding settings in a
very quick and easy way.  It'll automatically perform a bandwidth test,
and/or test the user's video settings to determine the most ideal
settings for streaming and recording (assuming a 1-pc setup).

The colon makes it difficult to use these locale items for other
purposes, and the colon isn't used much elsewhere, so just remove them.

Adds 1920x1080 and 1280x720 to the drop-down list of "default"
base/canvas resolutions rather than just the user's monitor resolutions,
in case the user wants to set the canvas to 1920x1080 or 1280x720
without having to manually type it in.  Added as a minor convenience.

The reasoning behind this is because having a very large canvas size can
negatively affect the user experience -- most sources end up seeming
smaller than they need to be to users, resulting in the user needing to
size up the sources, or in the case of webcams it makes the user try to
use much larger webcam resolutions than they should reasonably need to
do, resulting in higher unintentional resource usage.  The program will
additionally require more fillrate to render and downscale things as
well.

This applies only to the default starting base/canvas resolution for new
users only.

Additionally, users that ran the program pre-19 will be unaffected by
this change, as it will detect that and set the old defaults to prevent
an unexpected change in resolution for those users.

If defaults change for the base or output resolutions, it could
unintentionally affect users who are using defaults by chance and have
never changed those values.

Instead, save those values are soon as defaults are set if the users
haven't already set them.