allow customizable limit for fulltext search

git-svn-id: http://voronet.francu.com/repos/DEX@876 8d550267-2627-4c68-899f-85492a8dd5ca
add 2% texts

git-svn-id: http://voronet.francu.com/repos/DEX@877 8d550267-2627-4c68-899f-85492a8dd5ca