v2.8.75

Fixed LDAP bugs

All issues by LDAP available in the project Fix LDAP.

Thanks to @cptsanifair support and halp of @flybyray we solved LDAP issues that we managed to reproduce.

Added docs for LDAP configuration. Fill free to create PRs for the docs.

Implemented integration tests for all supported databases

Now all 3 supported databases (BoltDB, Postgres, MySQL) are tested on integration tests.

Thanks to se-di for support!

Semaphore no more blocks BoltDB file

To make integration tests possible for BoltDB we had to implement session connection to BoltDB file. Semaphore blocks the file only when read or write to it.

I think it is very useful feature for other applications too.