Mock BCS

Trying to make this a little bit neater. Computer rankings are blank when the team is either outside of the top 25 or is an outlier (the best and worst rankings are dropped).

The two changes are the Massey Ratings, which no longer have a BCS-compliant version, and the AP replacing the Harris poll, which also no longer exists.

Unlike the BCS standings, I'm including every team with even a small amount of points in the system, not just the top 25.

In future weeks, I will try to remember to copy in some way what the dropped computer rankings were.