Add variable for specifying url for cf-release
Add variable for specifying url for cf-release

yudai/cf_nise_installer,tchughesiv/cf_nise_installer,wabcwang/cf_nise_installer,yudai/cf_nise_installer_services,wabcwang/cf_nise_installer,kaerlong/cf_nise_installer,tchughesiv/cf_nise_installer,kaerlong/cf_nise_installer,yudai/cf_nise_installer_services,yudai/cf_nise_installer