py-ldap3: updated to 2.6.1

2.6.1:
- tested against pyasn1 0.4.7
- added eDirectory 9.1.4 (EDIR_9_1_4) to offline schemas
- added json converter for timedelta
- strip parameter defaults to False in utils.dn.parse_dn()
- escaped space is allowed as trailing character in attribute_value in utils.dn.parse_dn()
- connection.extend.standard.paged_search doesn't raise exceptions when raise_exceptions is False
- the Search operation returns the entries fetched by the server when size or time limits are reached even if raise_exceptions is set to True
- Handle the minimum value that can be stored in an Int64 in format_ad_timedelta
- EntryState: `entry_raw_attributes` is populated instead of `raw_attributes`
- Removed restriction to perform rename and move simultaneously in modify_dn
- fixed checking for hexdigits in parse_dn
- fixed escaping when multiple backslashes are present in parse_dn
- fixed multiple NoneType exceptions in entry_to_json()
- allowing Microsoft specific syntax (<WKGUID=xxx>) for WellKnownObjects in DN
- connection.extend.standard.paged_search() now follows referrals when auto_referrals=True
- fixed a bug in decoding replica list in connection.extend.novell.list_replicas()
- fixed a bug when adding duplicate alias in CaseInsensitiveWithAliasDict()
- added ignore_duplicates=False in set_aliases in CaseInsensitiveWithAliasDict() to ignore a duplicate alias (either in aliases or in keys)
- Schema info now uses CaseInsensitiveWithAlias dict as default so object and attributes can also be referentiated with OID
- added block mode and timeout parameters to next() method of persistent_search
- when using the pyasn1 decoder raw_dn is not returned as a pyasn1 object anymore but as bytes
- Return offset timezone aware datetime for max AD timestamp

(adam)