Performance improvement to RemoveDuplicatesNew: List<T>.Distinct() is faster than HashSet here

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code@10206 5227b50d-9349-4574-b055-4b0a7525e11c
Add articles back to ListMaker in bulk for better performance when lots of articles

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code@10207 5227b50d-9349-4574-b055-4b0a7525e11c
Performance improvement to list filtering on regex criteria for large lists

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code@10208 5227b50d-9349-4574-b055-4b0a7525e11c
Performance improvement to list filtering on namespace criteria for large lists

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code@10209 5227b50d-9349-4574-b055-4b0a7525e11c