Fixed Rakefile to exit nonzero on test failure
Fixed Rakefile to exit nonzero on test failure

ylansegal/zeus,kgrz/zeus,ylansegal/zeus,latortuga/zeus,matrinox/zeus,stripe/zeus,kgrz/zeus,kgrz/zeus,pelletencate/zeus,latortuga/zeus,stripe/zeus,burke/zeus,Lexxville/zeus,burke/zeus,matrinox/zeus,pelletencate/zeus,Lexxville/zeus,Lexxville/zeus,ylansegal/zeus,latortuga/zeus,pelletencate/zeus,burke/zeus,stripe/zeus,matrinox/zeus