Removed Daily Aggregate.  Not useful
Added an administrator flag to the user structure.
Added school houses property.
Added school houses property.
Added an administration construct.
Added a student construct.
Moved platform data to the student construct.
Moved student id to the student construct.
Added session time to the admin construct.
Added session time to the instructor construct.
Introduced language pairs.
Moved languages accessed to the student construct.
Introduced the notion of learning content.
Moved class registration count to student construct.
Moved lesson session count to student construct.
Moved lesson class participation to student construct.
Added the notion of an administrator id.
Added the notion of an instructor id.