NEWS,configure.ac: Update for 1.2.19.

git-svn-id: file:///home/xapian-svn/xapian/branches/1.2@18302 6b2f1b92-a4f3-0310-943f-de3cbe41748b
NEWS,configure.ac: Update for 1.2.19.

git-svn-id: file:///home/xapian-svn/xapian/branches/1.2@18303 6b2f1b92-a4f3-0310-943f-de3cbe41748b
NEWS,configure.ac: Update for 1.2.19.

git-svn-id: file:///home/xapian-svn/xapian/branches/1.2@18304 6b2f1b92-a4f3-0310-943f-de3cbe41748b
Update for 1.2.19.0.


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