added alignment to Pyron

a reduced alignment for model selection questions
added Kaffenberger_2011 dataset

Original_study
Kaffenberger N, Wollenberg KC, Köhler J, Glaw F, Vieites DR, Vences M
(2011) Molecular phylogeny and biogeography of Malagasy frogs of the
genus Gephyromantis. Molecular Phylogenetics and Evolution 62(1):
555-560. doi:10.1016/j.ympev.2011.09.023

Original_dataset
Kaffenberger N, Wollenberg KC, Köhler J, Glaw F, Vieites DR, Vences M
(2011) Data from: Molecular phylogeny and biogeography of Malagasy
frogs of the genus Gephyromantis. Dryad Digital Repository.
doi:10.5061/dryad.s791pg03

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

#Taxa
54

#Sites
6145

#data_blocks
26

Clade
Gephyromantis (malagasy frogs)

Notes
The number of sites in the alignment is 6548, but 403 are not included
by the authors.
The authors also exclude these sites, but it's not clear why so I
didn't exclude them in
the partitionfinder.cfg file.

From their original nexus file on Dryad:
exclude 2166-2470 4962-5362 5919-5919;