Replace LDAPEntry.get_parent() with parent_dn property
Add rename implementation and tests to LDAPEntry
Add test for getting None values from single-value attributes
Clean up openldap test server
Rename openldap to test_server
Split up ldapom into multiple files
Remove accidentally added LDAP test server data and gitignore it
Add test for LDAPAttribute.__unicode__ method
Let LDAPAttribute.__repr__ not return values and add test for it
Add test for saving a not-yet-loaded LDAP entry