#7 output analysis tool

[Brett Neely]

i need an output analysis tool to help spot problems in
playlist generation.

do the following:
- load the source playlist and the live playlist
- report the percent of songs used
- report min/avg/max artist distance
- look for 3-artists-in-a-row patterns
- look for 2 artists that appear next to each other
frequently (either order)
- examine each artist's distances, see if patterns exist
- on multiple passes, see where 1-song artists appear
within the playlist (beginning, middle, end?)