fixes issue related to newline appended to password
fixes to documentation
renamed “added” to created_at; added “updated_at” field
improved entry selection
- support for automatic generation of passwords
- all password are now made available to the clipboard
  (to make automatic generation of password really useful)
- code refactoring to make the code structure a bit more rational
be a bit more informative.
documentation
be more informative about what pwss is doing
more information on stdout
we are more cautious with updates and always require
the user to confirm the entry (even if there is only
one match)
all operations modifying data require to explicitly select an entry; added the possibility of updating any field (description is one-line, though)
mercenary 0.3.4
fixes to documentation