Passwd::cleanse() also resets the password size
db_base::flushLookup() now deletes all items
and pki_base does not anymore.
Drop TRACE
Colorize pki_base::print()
Set and inherit filename of loaded items
Add print() method to pki_pkcs12
and constify its methods
New classes:
- database_model: Manage the database tables (keys, req, cert, crl, templ)
extracted from widgets/MW_database.cpp
- arguments: parse commandline, dynamically create help text
