Fixed running tests with coverage by default.
Fixed running tests with coverage by default.

Previously the -cover flag was ignored

bluemixgaragelondon/cf-blue-green-deploy,bluemixgaragelondon/cf-blue-green-deploy,matulko/cf-blue-green-deploy,matulko/cf-blue-green-deploy,rrufus/cf-blue-green-deploy,Samze/cf-blue-green-deploy,Samze/cf-blue-green-deploy,rrufus/cf-blue-green-deploy