Remove comments from engine.run() function
Engine creates instance of new level
* This instance then calls internal play function
Write gate puzzle introduction
Add pseudocode for gates level
Add gates attribute to capture their states
* All gates start closed
Add print graphic function to display module
Add _gates_graphic() skeleton
* may need to be moved to display later
Merge branch 'master' of github.com:aleksharma12/hidden-temple

* incorporate updated README