Update first version date of Vlc.DotNet

The first release was on march 2009, which was hosted on CodePlex :)

And, yes, this was not the first attempt to use Vlc on dotNet, but the fisrt public version. As this pull request, the first but not the last one!

merged

Merci pour la clarification!

As this pull request, the first but not the last one!

Looking forward to them :)