Minor IM server update

We updated Bopup Communication Server applicationa and released it's new version 5.5.4 This build of the messaging server comes with a newer version of LibPQ runtime files that are needed to support and access to PostgreSQL database servers if they are used instead of Microsoft SQL Server to host the database. So we hope that the new version can avoid issues and possible internal errors persist in older runtime files and make the IM server much stable.

Download Bopup Communication Server version 5.5.4 — Instant messaging server with Active Directory (LDAP) support