Added error checking to initAPS to prevent Matlab crashes on missing bitfile
Added error checking to initAPS to prevent Matlab crashes on missing bitfile

Plourde-Research-Lab/Qlab,Plourde-Research-Lab/Qlab,Plourde-Research-Lab/Qlab,BBN-Q/Qlab,BBN-Q/Qlab,BBN-Q/Qlab,rmcgurrin/Qlab,rmcgurrin/Qlab,rmcgurrin/Qlab,rmcgurrin/Qlab,BBN-Q/Qlab