Pyvolve v0.9.1
Fixed incorrect implementation of AB protein model and added several more protein models, totaling:
ab
blosum62
cprev
dayhoff
dayhoffdcmut
flu
hivb
hivw
jtt
jttdcmut
lg
mtart
mtinv
mtmam
mtmet
mtrev24
mtver
mtzoa
pmb
rtrev
vt
wag
jc69 (aka poisson)
gcprev