Fix border bug in feature columns (#31)
Fix border bug in feature columns (#31)

First column's last li's border-bottom was breaking into the following
column.
adamgruber/mocha,outsideris/mocha,adamgruber/mocha,hoverduck/mocha,boneskull/mocha,hoverduck/mocha,mochajs/mocha,igwejk/mocha,boneskull/mocha,hoverduck/mocha,outsideris/mocha,mochajs/mocha,adamgruber/mocha,igwejk/mocha,boneskull/mocha,mochajs/mocha,hoverduck/mocha