- display correct read/unread information while displaying active topics
- fix for SELECT DISTINCT in mssql using sql_query_limit
- fix for forum updating in ACP using mssql (and probably other dbal having problems with primary keys in updates)
git-svn-id: file:///svn/phpbb/trunk@5940 89ea8834-ac86-4346-8a33-228a782c2dd0