Got the 3rd test for the concat function working.
Got the 3rd test for the concat function working.

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