FORGE-244: remove author str from Comment; rely on Message's underlying author_id
FORGE-244: remove author str from Comment; rely on Message's underlying author_id

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