Configure LemonLDAP::NG to use MySQL as main database

LL::NG use 2 internal databases to store its configuration and sessions.

Use MySQL for Lemonldap::NG configuration

Steps:

• Prepare the database and the LL::NG configuration file
• Convert existing configuration
• Restart all your Apache servers

Use MySQL for Lemonldap::NG sessions

Steps:

• Choose one of the following:
  • Using Apache::Session::Browseable::MySQL (recommended for best performances)
  • Using Apache::Session::MySQL (if you choose this option, then read how to increase MySQL performances)