scikit-bio: scikit-bio 0.4.1: TabularMSA and phylogenitc diversity metrics

We're very excited to announce scikit-bio 0.4.1. This release introduces several big new features, including the new TablularMSA object which has replaced the Alignment object, the addition of phylogenetic diversity metrics (unweighted UniFrac, weighted UniFrac, and Faith's Phylogenetic Diversity), and a lot more. You can review the CHANGELOG.md for a complete description of the changes in this release. To learn about what you can do with scikit-bio, you should browse our (awesome!) API documentation. We expect that scikit-bio 0.4.1 will be the last release that includes Python 2.7 support. In our next release we'll be transitioning to Python 3 only, as discussed in RFC 2. Be sure to follow @scikitbio on twitter for project updates, and as always, thanks for your interest in scikit-bio!