Added support for supplying commands to run upon open from cmd line.
Tweaked implementation of names/aliases.
Tidied handling of Console config variables and memory into state object.
Made script executable; Added todo for marking & rubric support.
Added session ordering to pracs.
Added temporal ordering to ListCommand (to display by order in which pracs that students belong to occur).
Added preliminary marking support.
Added StatsCommand.
Modified ListCommand to show a count of scripts for each status; Fixed bug where sorting output data would modify underlying prac order.
Tweaked MarCommand.
Fixed bug in ReviewCommand where currently selected student was not in current student set (i.e. if students were filtered to pracs that didn't have current student).
Fixed improper reference to Console width in TestsCommand.