If there's a delay, it will *also* be ommitted after the appropriate
number of seconds.

I was originally going to add a new event for this, however this is
consistent with STREAMING_STARTING, which is emitted at the start
of the delay, not the end.

This reverts commit 5edeaa30, reversing
changes made to 0d280819.

Decklink: Add decklink output

UI: Fix auto remux warning

This fixes the QAbstractItemModel invalid index warning.

UI: Change resize output text

enc-amf: Update to 2.5.0 and update repository address

Closes obsproject/obs-studio#1499

rtmp-services: Add DLive

Closes obsproject/obs-studio#1482
Closes obsproject/obs-studio#1256

linux-capture: Fix repeated color-swapping and improve robustness further

Based on:

http://dailycommit.blogspot.com/2016/10/how-to-generate-pkg-config-file-with.html
https://people.freedesktop.org/~dbn/pkg-config-guide.html

Should allow third party plugins to find and use libobs more easily.

Closes obsproject/obs-studio#1467

The text for resizing the output based on source is inaccurate
because base and canvas are the same thing.

Previously toggled swapRedBlue every update regardless of settings being set, which resulted in
moving or resizing of windows causing undesired color-swapping behavior. Also now use more direct
method of comparing visualIDs without type-casting and base the glxpixmap attributes on texture
format being used rather than the bit-depth of the window.

linux-capture: Improve XComposite capture robustness

UI: Add option to auto remux

rtmp-services: Add Vimm.TV

libobs: Truncate thread names on Linux

The pthread_setname_np manpage states:

The thread name is a meaningful C language string, whose length is
restricted to 16 characters, including the terminating null byte ('\0').

UI: Add ability to resize output based on source size

CI: Build on Linux with AppVeyor

On Ubuntu 16.04 (Xenial), we have to build mbedTLS from source because
the version available from apt, mbedTLS 2.2.1, does not work with the
RTMPS implementation in OBS, which requires mbedTLS 2.7 at minimum. This
is due to the use of the function mbedtls_ssl_conf_dh_param_bin, which
was introduced in mbedTLS 2.7.

Build on Linux (Ubuntu 16.04) with AppVeyor. Disable PowerShell on
Linux. Ubuntu 16.04's dependencies are different from the existing
Ubuntu 14.04 dependencies, so a separate script for installing those
dependencies has been added.

AppVeyor commands use cmd/batch by default. Specify cmd for lines meant
for cmd to differentiate them from lines meant for ps/PowerShell or
sh/shell/Bash.

Move the AppVeyor install scripts to a separate script file. This
shortens the appveyor.yml file and makes it easier to introduce new
install scripts for other build environments.

There is one minor change to the install script, and that was to change
directory back to the obs-studio git root directory.

obs-filters: Add base canvas resolution option

UI: Fix array length computation

The UI currently is dependent on browser source files being present,
when in actuality the files may not have been fetched (i.e. not fetching
submodules).  This fixes that by using a macro to detect whether it's
available or not.

Closes obsproject/obs-studio#1490

docs/sphinx: Add missing obs_sceneitem_get_id info

win-capture: Add option to adjust hook rate for game capture