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Updated LAV Filters to 0.63-33-2eaa432 (custom build based on 0.63-27-57ca857).

Important change: LAV Video Decoder: Small fix for HEVC decoding.
Update AStyle to v2.05.1.

Workaround the regression described in https://sourceforge.net/p/astyle/bugs/330/.
(WIP/Broken) Disable the time tooltip shadow for incompatible video renderers.

Some video renderers cause the tooltip shadow to be replaced by an opaque black box.

Fixes #1415.
(WIP/Broken) Try to find out if VMR-7 uses overlays, without luck so far...
Don't force any background color for the Shockwave graph.

This commit fixes #1747.
WebUI: Inform the web interface that no audio stream is available.
WebUI: Make use of new [hasaudio] info.
What the hell was intended here?!

Trying to make some sense of that code. Without much luck so far...