Merge pull request #84 from mcartaud/master

merge change for markdown, custom search bar and protection of mixpanel events calls
2.2.9 preparation
Merge branch 'master' of github.com:restlet/restlet-sites
created RAML extension documentation, updated Swagger documentation, updated index and extensions matrix (https://github.com/restlet/apispark/issues/1439)
fixed trailing whitespaces errors (https://github.com/restlet/apispark/issues/1439)
fix attempt on lists (/home/cyp/Téléchargements/mps/Amazing.mp3)
fix attempt on lists n°2 (https://github.com/restlet/apispark/issues/1439)
Fixed javadocs links (issue https://github.com/restlet/restlet-marketing/issues/154).
Fixed jetty links (issue https://github.com/restlet/restlet-marketing/issues/154).
Fixed link.
Fixed link.
Fixed link.
fix a dead link in user guide
Merge remote-tracking branch 'upstream/master'
reverse apispark and restlet-framework sections in index.html - https://github.com/restlet/restlet-marketing/issues/168
add files to keep old popup and their javascript out of ressources file