Based on an idea from Jean-Philippe André

Lua source code can be compiled into binary files to speedup loading using the luac command line utility. VLC will first try loading the .luac module and fallback to .lua if it fails.
(And factorize code)

This reverts commit 2e028db6.
This violates segmentation when exiting Qt4 with the error dialog.

VLC_CODEC_FL32/64 are mapped on the native type as before.

It will allow to merge a few raw video demuxers.

They will allow to minimize the number of events sent.

This reverts commit b48252ea.

now services discovery root nodes can be found from lua

Reverts part of 7db94f4d and rewrite the code.

variables: print an error message when a variable is created without a type (often a typo like the previous commit).

Currently, input objects of VoD media instances are children of the
libvlc object; this patch makes them children of the VoD server object
instead. This will provide simpler and cleaner communication means.