The virtual address table values for Reset/ResetEx can sometimes point
to functions that are in libraries outside of D3D8.dll and D3D9.dll, and
will cause a crash if used.  Instead, just hook Reset/ResetEx when one
of the Present* functions are called.

SIGTRAP is the correct value to use to specify a breakpoint.

Fixes warning (clang):

variable 'added_packet' is used uninitialized whenever 'if' condition is
false [-Wsometimes-uninitialized]

Since the RTMP_Close was moved to the send thread (where it should have
been) the stop thread now has no real purpose.

This forces proper crash handling to generate a stack trace.

This may end up being a bit redundant, but it's just to ensure that the
packet buffer is free before connecting.

The duplicator is supposed to be able to safely fail to create, so using
a debug log message is more appropriate.

Having sleep or screensavers inhibited at all times was causing some
annoyances for people.  Sleep/screensavers are now only inhibited when
the program is active or when a projector is open.

Fixes warning introduced by d7848f3c that pops up in GCC:

warning: comparison of unsigned expression < 0 is always false
[-Wtype-limits]

The proper solution was to use the 64bit integer values with the clamp,
and then convert to a 32bit unsigned integer.

Fixes the following warning:

warning C4505: 'operator ==' : unreferenced local function has been
removed

This function actually is used despite this warning, so the only way to
get rid of the warning is to disable the warning itself in this
particular case.

Fixes the following warning of MSVC:

warning C4244: '=' : conversion from '__int64' to 'uint32_t', possible
loss of data

Allows changing item selection via list box or via preview window, and
keeps their selection status in sync with each other.

Currently supported settings:
- Resolution
- Frame rate
- Input format

Accessing objects inside obs_datas after obs_data_clear was called on the
parent obs_data causes a NULL dereference.

Reproduce with:
	obs_data_t *data = obs_data_create();
	obs_data_set_obj(data, "foo", NULL);
	obs_data_clear(data);
	obs_data_get_obj(data, "foo");

The unsupported part should basically be signaled via making that
value inaccessible