support :plain keyword to print out plain-text form of deserialized feature structures (e.g.: {:plain (fs/serialize (it "cane"))})
fix whitespace
add (get-morph) to generalize morphological functionality from both english and italian.
remove comment that doesn't seem to apply anymore.
rewrite (lookup-in) using (loop ... (recur)) for efficiency. also use fs/copy because fs/match modifies its arguments.
generalize "drinkable" and "mass noun" lexical definitions
if number not specified, use root form as italian and english output from morphology.
whitespace