gpio package dependency missing

[dothebart]

while others are apt'ed these packages seem to be missing:

Dependencies installed
Installing WiringPi

/home/pi/Dexter/lib/Dexter/script_tools/update_wiringpi.sh: line 11: gpio: command not found
wiringPi VERSION is
/home/pi/Dexter/lib/Dexter/script_tools/update_wiringpi.sh: line 30: [: -eq: unary operator expected
Did NOT find WiringPi Version 2.36

Also missing in order to use the GrovePi repo: python-numpy