*slight modification in input_dvd since Getiovec wasn't at the right
place *send escape packet when changing title, not to be stuck in some decoder. *the position in the title is now resetted when we change title to prevent a title from being unavailable because we're stuck at the end *fixed a bug with 1-chapter-long title that displayed chapter 0. *added a _temporary_ field in p_main to know whether the audio stream is ac3 (ugly). It allows a vlc launched in spdif mode to play mpeg or lpcm audio. *cleaned the title property messages to get rid of the ugly stars.