Links for horizon
http://devstack.org/
http://docutils.sourceforge.net/rst.html
http://lesscss.org/
http://nodejs.org/
http://nodejs.org/#download
http://sphinx.pocoo.org/
https://blueprints.launchpad.net/horizon
https://bugs.launchpad.net/horizon
2012.2 home_page
https://launchpad.net/horizon