add some tests for "fare bene a vendere la casa (to do well to sell one's house)"
spacing
fix bug introduced when I moved to using (path-to-last-subcat)
fix morphology of past "fare bene (to do well)" => "did well"
move test 'adj-agreement-with-subject' from generate to grammar.
test for "fatto bene (did well)"
add tests for "fare bene (to do well)" and "fatto bene (to do well)"
make grammar tests available to sandbox namespace.
diagnostics for problems related to over-generation due to two different senses of avere (with different subcat frames) matching in same rule.
add another fact to "sciopero (strike)" which we should not need.