do binary releases via "github releases", closes #214

docs/_themes/local/sidebarusefullinks.html

@@ -4,8 +4,8 @@
 <h3>Useful Links</h3>
 <ul>
   <li><a href="https://borgbackup.github.io/borgbackup/">Main Web Site</a></li>
+  <li><a href="https://github.com/borgbackup/borg/releases">Releases</a></li>
   <li><a href="https://pypi.python.org/pypi/borgbackup">PyPI packages</a></li>
-  <li><a href="https://github.com/borgbackup/borg/issues/214">Binaries</a></li>
   <li><a href="https://github.com/borgbackup/borg/blob/master/CHANGES.rst">Current ChangeLog</a></li>
   <li><a href="https://github.com/borgbackup/borg">GitHub</a></li>
   <li><a href="https://github.com/borgbackup/borg/issues">Issue Tracker</a></li>

docs/installation.rst

@@ -85,7 +85,7 @@ For some platforms we offer a ready-to-use standalone borg binary.
 
 It is supposed to work without requiring installation or preparations.
 
-Check https://github.com/borgbackup/borg/issues/214 for available binaries.
+Check https://github.com/borgbackup/borg/releases for available binaries.
 
 
 Debian Jessie / Ubuntu 14.04 preparations (git/pypi)