parameterize UPSTREAM_DIRECTORY_XML so we can feed the JBDS value for the JBDS-IS directory.xml; parameterize the filename so the generated file for JBDS IS is not jbosstools-integration-stack-directory.xml, but devstudio-integration-stack-directory.xml
Merge pull request #98 from nickboldt/generate-composite-for-JBTIS-disco_5

parameterize UPSTREAM_DIRECTORY_XML so we can feed the JBDS value for the JBDS-IS directory.xml; parameterize the filename so the generated file for JBDS IS is not jbosstools-integration-stack-directory.xml, but devstudio-integration-stack-directory.xml >