Rewrote the at fn to use an iterator. 
Rewrote the at fn to use an iterator. 


Real-Serious-Games/Panjas,data-forge/data-forge-js,ashleydavis/Panjas,Real-Serious-Games/Panjas,Real-Serious-Games/data-forge-js,Real-Serious-Games/data-forge-js,ashleydavis/Panjas