added Irisarri_2012

Original_study
Irisarri I, San Mauro D, Abascal F, Ohler A, Vences M, Zardoya R (2012)
The origin of modern frogs (Neobatrachia) was accompanied by
acceleration in mitochondrial and nuclear substitution rates. BMC
Genomics 13(626). doi:10.1186/1471-2164-13-626

Original_dataset
Irisarri I, San Mauro D, Abascal F, Ohler A, Vences M, Zardoya R (2012)
Data from: The origin of modern frogs (Neobatrachia) was accompanied by
acceleration in mitochondrial and nuclear substitution rates. Dryad
Digital Repository. doi:10.5061/dryad.3qd54

Dataset_license
CC0, http://creativecommons.org/publicdomain/zero/1.0/

#Taxa
37

#Sites
11136

#data_blocks
34

Clade
Neobatrachia (modern frogs)

Used for tree inference by original authors?
yes

Notes
The alignment contains a lot of sites that weren't used for tree
inference, and these
are appropriately excluded in the PF.cfg file. E.g. mt 1st and 3rd
positions, and nuclear
3rd positions. For completeness, I've included the definitions of these
partitions in the
.cfg file, but just commented them out so they won't be used during
model selection.
edited README in Endicott_2008