Fix link to SOC in registration page

git-svn-id: svn://svn.mongueurs.net/yn2014@41 89e87127-a2d7-e211-820f-0014221438fa
Comment out 2011 sponsors

git-svn-id: svn://svn.mongueurs.net/yn2014@42 89e87127-a2d7-e211-820f-0014221438fa
Remove other conferences from main body

git-svn-id: svn://svn.mongueurs.net/yn2014@43 89e87127-a2d7-e211-820f-0014221438fa
Revert "Remove other conferences from main body"

This reverts commit 18c5b4d7f84bef7d3313004c1873a03b9afb63b2.

git-svn-id: svn://svn.mongueurs.net/yn2014@44 89e87127-a2d7-e211-820f-0014221438fa