ENHANCEMENT: Session is now calculated from the sessiondatatable to save compute time
ENHANCEMENT: Session is now calculated from the sessiondatatable to save compute time

The table sessiondata is much more compact then the timestamptable.
Changed the calculation of the session to this table. Should save
compute time.

AMOSus/amos-ss16-proj6,AMOSus/amos-ss16-proj6,AMOSus/amos-ss16-proj6,AMOSus/amos-ss16-proj6