Add verbose flag to status to print all information on track

Eventually a better system of parsing flags should be used, possibly
using getopt as it is simple and is consistent across different versions
of python (unlike optparse/argparse).
Add youtube command to print youtube link to current song

Eventually the full history of the current playlist should be stored,
similar to the web interface.
[progress] set and get properties, mplayer repeat command

This is still pretty dodgy and fragile.