[#967] poster module required for validate_html5().
[#967] poster module required for validate_html5().

apache/allura,lym/allura-git,lym/allura-git,apache/allura,Bitergia/allura,apache/incubator-allura,leotrubach/sourceforge-allura,leotrubach/sourceforge-allura,heiths/allura,heiths/allura,lym/allura-git,heiths/allura,leotrubach/sourceforge-allura,lym/allura-git,Bitergia/allura,Bitergia/allura,apache/incubator-allura,apache/incubator-allura,Bitergia/allura,apache/allura,lym/allura-git,apache/allura,Bitergia/allura,leotrubach/sourceforge-allura,apache/allura,apache/incubator-allura,heiths/allura,heiths/allura