REL: 2.1.1

@gregcaporaso @jairideout, could one of you review please? Once this is merged, will tag, push to pypi and then issue a PR to bump to 2.1.1-dev
No change to format spec, but realized when searching through the code base
that this needed to be bumped to 2.1

On Wed, Nov 19, 2014 at 4:33 PM, Greg Caporaso <notifications@github.com>
wrote:

> In biom/table.py:
>
> > @@ -3328,7 +3328,7 @@ def to_hdf5(self, h5grp, generated_by, compress=True):
> >  py.sparse.csr_matrix.html
> >          .. [2] http://docs.scipy.org/doc/scipy-0.13.0/reference/generated/sci\
> >  py.sparse.csc_matrix.html
> > -        .. [3] http://biom-format.org/documentation/format_versions/biom-2.0.\
> > +        .. [3] http://biom-format.org/documentation/format_versions/biom-2.1.\
>
> Should this URL be 2.1.1? (Just checking to make sure it's not a typo.)
>
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> <https://github.com/biocore/biom-format/pull/564/files#r20617013>.
>