#82: added Contents controller, logical model, views
#82: added search form to Contents page
#82: updated locales
#82: added specs of access rights for controller
#82: added specs for PlatformContent
#82: updated regexp
#82: updated regexp for term
#82: Strip out the non-ascii character
#82: sanitize path and term
#82: small refactoring
Merge pull request #213 from abf/rosa-build:82-show-content-of-platforms
 #82: Show content of platform on ABF