win32: remove minor non-sense

This is done in the wrong thread. Was harmless and had no effect at all.
manpage: eliminate the word "movie"

It's evil and sounds outdated. Use the words "media" and "video"
instead.

Closes #935.
ao_pulse: remove hacks for ancient PulseAudio versions

This was needed by very old (0.9) versions only. Get rid of it.

Unfortunately, I can't cross-check with the original bug report, since
the bug URL leads to this:

Internal Server Error

TracError: IOError: [Errno 2] No such file or directory: '/home/lennart/svn/trac/pulseaudio/VERSION'
ao_pulse: allow disabling timing bug workarounds

Add an option that enables using native PulseAudio auto-updated timing
information, instead of the manual calculations added in mplayer2 times.
You can use --ao=pulse:no-latency-hacks to enable the new code. The code
is almost the same as the code that was removed with commit de435ed5,
but I didn't readd some bits I didn't understand. Likewise, the option
will disable the code added with that commit.

In my tests this seemed to work well, though the A/V sync display looks
funny when seeking.

The default is still the old behavior.

See issue #959.