when invoking cuckoo.py --clean, do not check schema version
when invoking cuckoo.py --clean, do not check schema version

This allows one to completely delete the database contents and all its
associated files (samples, reports, etc) without being up-to-date with
the latest database schema. Basically this allows a cheap upgrade to the
latest version of Cuckoo without having to migrate all current data
(i.e., all existing data is removed from the database).

cuckoobox/cuckoo,cuckoobox/cuckoo,cuckoobox/cuckoo,cuckoobox/cuckoo,cuckoobox/cuckoo