Block 2 Starting Point

Starting Point for my second block of coding time.
Expected Values

Function can now return expected values of coefficients. It appears to
be working pretty well.
Added Documentation

Tried to make what I was doing more clear.
Prob. Coef is nonzero

Can now calculate probability a coefficient is non-zero.
Parallel

Added parallel arguments to each --ply function used in my function. I
haven't been able to get parallel to work on my comp, so hopefully it's
functional for others.
Working on conversion to S4

Am converting the function to S4 now. Also updated documentation.