[EM] Manipulability stats for every tested method (plus Approval Sorted Margins)

[Kristofer Munsterhjelm]

Here are the manipulability stats that I've checked, for methods 
cardinal and ordinal. I've also added Approval Sorted Margins (or MSA), 
as I ran that test last night. As usual, asterisks mark non-poll methods.

0.937    *Range(0-5, absolute scale)
0.928    Approval (absolute scale)

0.710    *Range (0-10, normalized)
0.708    *Range(0-5, normalized)
0.705    Smith//Range(0-5, absolute scale)

0.698    *Borda
0.666    Approval (mean utility cutoff)
0.655    Smith//Range(0-10, absolute scale)
0.645    STAR

0.564    Smith//Range (0-5, normalized)
0.557    Smith//Range (0-10, normalized)
0.545    Condorcet//Borda (Black)
0.514    Smith//Approval (explicit, mean utility cutoff)
0.508    Approval Sorted Margins (mean utility cutoff)
0.490    Smith//Approval (implicit, mean utility cutoff)

0.480    Copeland//Borda (Ranked Robin)
0.443    Smith//DAC (mean utility truncation)

0.417    Plurality
0.412    *BTR-IRV

0.350    Baldwin
0.333    Raynaud (Gross Loser Elimination)
0.333    Schulze(wv)
0.332    Minmax(wv)
0.321    Ranked Pairs(wv)

0.075    Woodall, Schwartz-Woodall
0.074    RCIPE
0.074    IRV
0.074    Benham

-km