Performance: use bulk method to convert list to list of articles rather than foreach loop

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code@10269 5227b50d-9349-4574-b055-4b0a7525e11c
Simplify selectNone method

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code@10270 5227b50d-9349-4574-b055-4b0a7525e11c