OPENDJ-3089 Several minor fixes from the PR

Nicolas Capponi

23.02.2016 ec6fcea7eb3b1013db8b26ff65327d3ab24077c9

opendj-server-legacy/src/main/java/org/opends/server/util/RemoveOnceSDKSchemaIsUsed.java does not exist in tree 42fb99d619c7c9f75c2056af8acf52013646e4cc