add a direct link in the release history to the latest release (#1747)
add a direct link in the release history to the latest release (#1747)

* add a direct link in the release history to the latest release, fixes #1504
dstufft/warehouse,pypa/warehouse,pypa/warehouse,alex/warehouse,alex/warehouse,alex/warehouse,dstufft/warehouse,pypa/warehouse,pypa/warehouse,alex/warehouse,dstufft/warehouse,alex/warehouse,dstufft/warehouse