Support dual login via LDAP and forms authentication

Closes #256 as we now support dual login -- LDAP and forms authentication.

Also bumped the vendored library to LDAP.v3 as it contains bug fixes.

README.md

@@ -13,13 +13,13 @@ All you need to provide is PostgreSQL, Microsoft SQL Server or any MySQL variant
 
 ## Latest Release
 
-[Community Edition: v2.4.2](https://github.com/documize/community/releases)
+[Community Edition: v2.5.0](https://github.com/documize/community/releases)
 
-[Enterprise Edition: v2.4.2](https://www.documize.com/downloads)
+[Enterprise Edition: v2.5.0](https://www.documize.com/downloads)
 
 > *We provide frequent product updates for both cloud and self-hosted customers.*
 >
-> **Harvey Kandola, CEO/Founder, Documize, Inc.**
+> **Harvey Kandola, CEO/Founder @ Documize**
 
 ## OS support
 
@@ -45,17 +45,19 @@ Heck, Documize will probably run just fine on a Raspberry Pi.
 - Brave
 - Vivaldi
 - Opera
-- Edge (v42+)
+- Microsoft Edge (v42+)
 
 ## Technology Stack
 
-- Go (v1.12.4)
+- Go (v1.12.5)
 - Ember JS (v3.8.0)
 
 ## Authentication Options
 
 Besides email/password login, you can also connect to LDAP/Active Directory or Red Hat Keycloak server.
 
+Dual authentication of LDAP and email/password is also supported.
+
 ## The Legal Bit
 
 <https://documize.com>