change `--advanced` to `--all` to list all components
add quick test case to assert that LangComponents always have a locale
getDisplayName() only does special stuff for LangComponents, and then only when needed
compact Component methods, prefer to use getters to retrieve descriptor attributes
more Component method compacting
bugfix: some components might not have a "name" extended attribute; fall back to module name
fix typo
testwise dependency on marytts-runtime
omit attributeValues