Add cromwell to cgcloud image for cgl-docker-lib build #212
Description
See BD2KGenomics/cgl-docker-lib#153. We want cromwell installed for testing WDL documents. We probably also want to install toil/cwltoil to test CWL documents.
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See BD2KGenomics/cgl-docker-lib#153. We want cromwell installed for testing WDL documents. We probably also want to install toil/cwltoil to test CWL documents.