Changes

*''system'': System values that do not fit neatly into the other categories

**'''timeout''': Integer. After that many minutes of inactivity, a user will be logged out.

**'''url''': String. The ldap:// URL of the server itself.

**'''o''': String. PLEASE DOUBLE-CHECK THE PURPOSE OF THIS

**'''user_role''': String. The field in your organization's LDAP which denotes the user's organizational role.

**'''user_title''': String. The field in your organization's LDAP which denotes the user's title.

**''blacklist'': A list of users who are banned from the server. These users can still attend meetings which allow guests if they have been given the Guest URL.

***'''username''': String. One user's user ID to ban from the server. A <blacklist> node can contain multiple <username> nodes.

**''courseList'': A list of course codes to make available to users creating Lectures.

***'''course''': String. A course code. A <courseList> node can contain multiple <course> nodes.