Moving check for "$rc_type == RC_LOG" before check for special pages since log entrie...

Moving check for "$rc_type == RC_LOG" before check for special pages since log entries can now have a tagert in NS_SPECIAL, this happens for log item deletion (rev_deleted stuff) and thus breaking recent changes display, (see the current version of test.wikipedia.org/wiki/Special:RecentChanges, where the deletion log appears as "block log" since the last entry is hiding an item from the block log)