v1.2

-Updates to matio to expose model matrices for more intuitive
before was

export = matio.Export(some_io_model_object)
export.to_dir() #which only exported API versions

now is

matrices = matio.Matrices(some_io_model_object)
#with option to get matrix like
matrices.A
matrices.B
#and two export options
matrices.export_for_api()
matrices.export_to_csv()