Major changes in sessions display:  * Added the index column.  * Correct the seconds display that was wrong when > 60.  * Changed the sortby parameter to display() to a class variable.  * Added the up/down key handling.  * Added primitive sorting ability.
Major changes in sessions display:
 * Added the index column.
 * Correct the seconds display that was wrong when > 60.
 * Changed the sortby parameter to display() to a class variable.
 * Added the up/down key handling.
 * Added primitive sorting ability.

aviramc/ifstat