1. DOC: Added documentation on top-level use.
2. FIXED: Quote escString. Not clear from GV grammar.
3. CLEANUP: Simplified attribute value generation: write directly i.o. first typechecking.
4. ENHANCED: Added support for many more method and output values.
5. CLEANUP: Simplified method and output options.
6. FIXED: Various fixes while using HTML-like labels for the first time.