Merge pull request #161 from jganseman/master

update homepage NL
add IOI questions in French
Merge branch 'master' of github.com:be-oi/beoi-website
switch home banners from IOI12-12 to 13-14
IOI 2013 to archive
remove beoi'13 results from the menus
added sponsoring map for 2014 and added links in html pages
Merge pull request #163 from fgi-github/master

added sponsoring map for 2014 and added links in html pages