Add a "structured" bit on definitions, allowing moderators to mark
definitions as structured to get them out of the way.
Add ajax links on the lexemEdit page to toggle that bit.
Add filters to show only structured / unstructured definitions.


git-svn-id: http://voronet.francu.com/repos/DEX@946 8d550267-2627-4c68-899f-85492a8dd5ca
add some tooltips in lexemEdit.php.


git-svn-id: http://voronet.francu.com/repos/DEX@947 8d550267-2627-4c68-899f-85492a8dd5ca