Get FFmpeg working on Ubuntu 14.04 and derivates

So as many of you might have noticed, in Ubuntu 14.04 we don't have ffmpeg anymore as it was replaced by libav (a ffmpeg fork of the project); So if you want to issue commands with "ffmpeg" or use programs that specifically need to work with such command, you only have to do this:

sudo ln -s /usr/bin/avconv /usr/bin/ffmpeg

And that's all. Now all calls to the "ffmpeg" command should be handled by avconv (the command that replaces the ffmpeg one in Ubuntu 14.04 and it's derivates).