Log Message:
Update keepassx to 2.0.

KeePassX 2.0 is using the new .kdbx (same as KeePass 2) database
format.  You can import your .kdb database from 0.4 from the Database
> Import KeePass 1 database.  This is a one-way process though.
You canât migrate back to the .kdb format.

New features include:

    Multiple attachments per entry
    Add custom key/value pairs to entries
    Open multiple database in one window

KeePassX 2.0 has been rewritten from scratch so some features (like
showing expired passwords) are still missing.