When building with VS2017 the compiler shows some warnings which is
undesirable.

The compiler rightly complains about declarations which hide older ones
which are trivially fixed.

Finally only POD types should be passed to variadic functions which is
why the String should be converted to c_str().
Relying on the current undefined behavior is a bad idea as it can change
with compilers and compiler versions.

Closes jp9000/obs-studio#902

OBS did not build out of the box in VS2017 but it does with these
changes.

Closes jp9000/obs-studio#902

frontend-tools: Add automatic scene switcher for Linux

UI: Fix drag & drop bug

rtmp-services: Update ingests

- Remove livecoding.tv (now using per-user ingest assignment)
- Remove Connectcast.tv (Shutting down)
- Remove Cashplay.tv (Shut down)
- Remove Restream.io LA ingest (removed)
- Rename Stre.am to Stream.live and update URL

The audio subsystem of windows is by default configured to lower the
volume of other things while a communications device (mic) is currently
active.  This patch prevents that from being enabled with OBS.  If the
user needs audio ducking enabled again for whatever reason, there is now
an option to re-enable it in advanced settings.

Closes jp9000/obs-studio#884

Mostly to reduce build time when the update module doesn't need to be
rebuilt.

enc-amf: Update to v2.1.0(.0)

Added offsets to support Windows 10 Creator's Update

* Supports both H264/AVC and H265/HEVC encoding.
* Fixed several crashes and bugs that plagued users.
* Massively reduced CPU usage caused by the plugin.
* Added settings for custom I/P/B Interval.
* Added settings for custom Frame Skipping.

Currently the captioning code is a bit intertwined with the UI, and the
captioning is hard-coded towards microsoft speech API.

This patch abstracts captions to allow other APIs to be implemented
later.

Changing the name of certain captions source files so it specifies which
caption API the files are for.  "mssapi" for Microsoft's speech API.

Closes jp9000/obs-studio#853

This adds close buttons to remux dialog, output timer dialog, and
advanced audio properties dialog.  I also did a small refactor of the
remux dialog so the buttons were consistent with other dialogs.

Closes jp9000/obs-studio#876

Clears/reinitializes RTMP structure to defaults, preventing data from
potentially persisting between different connections.

Closes jp9000/obs-studio#878

After dragging and dropping a file, the source name will be the
filename.

(Jim: When dragging and dropping raw text, the raw text would then be
used as the source's name, which is bad if there's a lot of text.  It's
now been changed so that it uses the source type's display name, i.e.
"Text (GDI+)" as the source name in that case)

Closes jp9000/obs-studio#888

Update Linux kernel coding style URL in CONTRIBUTING

UI: Ctrl+E to Edit Transform

This commit adds functions to get, set and save the service and its
settings, and is plugged straight into the existing internal functions
serving this purpose

(Jim: Fixed commit message and missing newline at end of file)

Closes jp9000/obs-studio#895

Changes "class" prioritization to attempt to find the window either with
the same title, or the next window of the same window class (window
type), changes "title" prioritization to only find the window based
upon its title, and changes "executable" prioritization to attempt to
find the window with the same title, or the next window of the same
executable.

Additionally changes the text associated with these selections to
clarify that functionality to users.

UI: Remove unused defines from old updater code

Added support for multiple signature matching and variable offset
positions. Added support for Win7 64 bit signature for consistency.

This commit removes some define statements that were used in the updater
code before OBS Studio 18.0.0.

Added a shortcut to "Edit Transform", with Ctrl+E (lines 1191-1193).
Editing was very easy in OBS Classic, and I could not find the option
for stretching a source to bounds in OBS Studio, so the "Edit Transform"
dialogue should be more user-facing. Giving it a keyboard shortcut
denotes that it is important enough to have a shortcut, as opposed
to the myriad options with no shortcut

When visiting https://www.kernel.org/doc/Documentation/CodingStyle, you
see the message, "This file has moved to process/coding-style.rst". This
commit replaces the old URL with a version hosted on GitHub.

Fix various typos across multiple modules

libobs-opengl: Log OpenGL version on all systems

This commit logs the OpenGL version on all operating systems and brings
the OpenGL subsystem's initialization logging more in line with the
D3D11 logging to make logs more uniform.