Release 1.4.0

• ADDED: LDAPUserManager for manually creating users from LDAP.
• ADDED: createtask management command for creating Task Scheduler jobs.
• ADDED: ldap_user_sync signal.
• IMPROVED: LDAP Settings for Group Membership check propagate to one another.
• MODIFIED: Increased the default WAUTH_RESYNC_DELTA to every 1 day.