title: Error when deploying chaincode in test network
body: <p>I've just started working on fabric an am having some trouble using the command:
  ./network.sh deployCC
  after setting up my channels. This is the terminal readout:
  '''
  deploying chaincode on channel 'mychannel'</p>
  <p>Vendoring Go dependencies ...
  ~/desktop/HF/fabric-samples/chaincode/fabcar/go ~/desktop/HF/fabric-samples/test-network
  scripts/deployCC.sh: line 24: go: command not found
  ~/desktop/HF/fabric-samples/test-network
  Finished vendoring Go dependencies
  Using organization 1
  ++ peer lifecycle chaincode package fabcar.tar.gz --path ../chaincode/fabcar/go/ --lang golang --label fabcar_1
  ++ res=1
  ++ set +x
  Error: failed to normalize chaincode path: failed to determine module root: exec: &quot;go&quot;: executable file not found in $PATH
  !!!!!!!!!!!!!!! Chaincode packaging on peer0.org1 has failed !!!!!!!!!!!!!!!!</p>
  <p>ERROR !!! Deploying chaincode failed
  '''
  It seems that I must have messed something up in the prereqs. Any suggestions?</p>