- Check if the bt5 is already installed, this is not a change of behaviour, just a performance improvement
 - Cache getInstalledBusinessTemplateTitleList, because it doesn't change during the build and it is a bit time consuming do it so often.
 - Use activate and install_dependency, this can make bt5 list shorter and make core relies on BT5 definitions.
 - Build should wait for updateBusinessTemplateFromUrl
 - Automatic Dependence handling updateBusinessTemplateFromUrl is invoked using activities.