Fix broken user icon urls
Fix broken user icon urls

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