Add cache filling level to the MediaPlayerBuffering event.

The mozilla webplugin events do not support arguments and expose all events available in libvlc. Most
of these events are not usefull for the webplugins and not being able to pass arguments is another limiting
issue. This patch addresses both problems at the same time.

The mozilla webplugin limits supports to the libvlc_MediaPlayer* events just like the ActiveX webplugin does.
These events are usefull in the context of a webplugin.

Ommit the 'libvlc_' prefix from the libvlc_MediaPlayer* events to obtain the events name that must be
used from JavaScript to listen on the event. Example:

- libvlc_MediaPlayerOpening becomes 'MediaPlayerOpening'
- libvlc_MediaPlayerNothingSpecial becoms 'MediaPlayerNothingSpecial'
Signed-off-by: Jean-Paul Saman <jean-paul.saman@m2x.nl>

Conflicts:

	projects/mozilla/vlcplugin.cpp
	projects/mozilla/vlcplugin.h

Cheery-pick of  [4099d3dda0c311a]
Signed-off-by: Christophe Mutricy <xtophe@videolan.org>

62487ef4 removed asademux code but not
all references to it vanished
Signed-off-by: Daniel Mierswa <impulze@impulze.org>
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Closes #4142

Signed-off-by: Rafaël Carré <rafael.carre@gmail.com>

It lacks an icon for now and doesn't have the "unmute" ability.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Use strftime() and localtime_r() instead.

Consistency between Spatializer and Compressor

And translate strings

Modified by jb@videolan.org

This SD is really simple for the moment, It can be improve to ease the
navigation through the different books.

Signed-off-by: Laurent Aimar <fenrir@videolan.org>
Modified by Laurent Aimar (removed the equalizer part of the initial
patch).

By the way, it seems like we should always use NULL rather than "" for
longtext. Not only this avoids the recurrent gettext("") translation
problem, but an empty tool tip makes no sense. There should be no tool
tip at all if there is no text.

stamp-cache is a PHONY target

Both in installed and non-installed mode