Allows usage of jack on OSX (as well as windows later).

Closes jp9000/obs-studio#587

obs-filters: Fix step size for surpress level of noise surpression filter

libvlc_media_new_path implies a file.  To get media based upon URLs, use
libvlc_media_new_location.  Additionally, if using a URL, it's best to
give it some playback caching/buffering, at least 100 milliseconds.

Closes jp9000/obs-studio#590

Outputting a human-readable error message on library load failure makes
it a little bit easier for plugin developers to determine why a plugin
library may have failed to load (such as missing dependency), rather
than having to look up the error code each time.

Closes jp9000/obs-studio#596

Previously, for an unknown reason p-frames were marked as highest
priority along with i-frames (keyframes), which means they could not be
dropped.  This would cause a problem where if for whatever reason
there's too much congestion, data would continually buffer.  This fixes
the issue by dropping p-frames at a separate (higher) threshold than
b-frames.

P-frames were initially set as highest priority to prevent them from
being dropped (not sure what the rationale was behind this), but this
caused a problem where if there's too much congestion for whatever
reason data will continue to stay buffered, so to prevent this p-frames
should be droppable.

Measures packet data rate and sleeps to prevent data from going above
the set data rate.  Uncomment the TEST_FRAMEDROPS macro, then set
DROPTEST_MAX_KBPS to the desired kb/s (for example 3000 for 3000
kilobits per second), and then it will limit the data rate to that
specified amount, forcing the thread to sleep to ensure it can only
output the desired data rate.

This new trick forgoes the use of patches and allows the ability to use
shared GPU resources despite being a Direct3D 9.0c context.

Causes issues with certain servers that don't parse it properly and only
expect a specific string.

Use the RTMP onMetaData to get the OBS version instead when possible.

Add new Beam.pro ingests

UI: Improve saving and restoring geometry of main window

When game capture was set to hotkey mode by the user, it would try to
activate the capture right away without waiting for the user to press a
hotkey.

Never checks to see whether the source dstr is empty before copying, and
will crash if empty.

Closes jp9000/obs-studio#574

Even if the hotkey is not enabled, always allow configuration of the
hotkey.  Fixes a bug where the hotkey configuration settings would not
save if the settings were changed.

Annoyingly this means that the hotkey will still be shown to the user,
possibly confusing the user as to whether they can use it, but for the
time being it's better than having their hotkey configuration removed
each time they change the mode.

The retry interval seconds could grow exponentially large.  Limit it to
a maximum of 15 minutes between retry intervals.

Instead of just having a limited number of video file types that can be
used, allow all files types that VLC supports.

Fixes performance issues with windows 10.0.14393.0

It's supposed to look for patch segments in ascending order, from the
smallest offset to the largest offset.  Patch type/comparison is
identical to the one it's being swapped with, so only the offsets need
to be swapped.

With this change "Movies & TV" (version 3.6.2251.0) and Firefox 47.0
play audio encoded with mf_aac

Closes jp9000/obs-studio#577

rtmp-services: Add Boomstream service

Instead of saying "windows versions less than 8", say "windows versions
prior to 8".

The league lobby window can apparently be captured by game capture, and
may actually be useful to capture for some people.