Fix crash in obs_get_video_info when video_output_get_info returns NULL
Merge pull request #274 from reboot/fix_crash_on_video_init_error

Fix crash in obs_get_video_info when video_output_get_info returns NULL
libobs/media-io: Add more audio debug output
linux-pulseaudio: Use inline for small functions
linux-pulseaudio: Use interpolated system timing

Before it was giving timestamps based upon system time for each new
segment of audio data.  Also, it was subtracting pulse latency from the
audio timestamp, which seems like it was really meant for use with the
pulse audio time rather than system time.

Now, it just uses system time for timestamps.  Still might not be
totally perfect, but seems to be much better than it was.

This also removes the latency calculation.  Latency is no longer used
because we're not using pulseaudio timing.