Idea: LDAP support

[rjzak]

Having LDAP support may make it easier to manage users and groups, and MalwareDB would only need read-only access (read-write for any admin operations).

• person.uname in the database would be the LDAP path, uid=asmith,dc=example,dc=com
• person.password would be null.
• mdbconfig could need additional columns to indicate the server, search path, username, password for the LDAP server, possibly more pending further investigation, such as a filter (ex: (objectClass=person)). This would be read at launch, and periodically checked, or recheck if a URL is accessed?