data option values require an escaped double-quote like other tag attributes
refactor .expand for clarity
add test to make sure we can do simple interpolation easily
First pass at a container component which has children
Symbols may be used to specify CSS dom id on tags
Add basic support for configurable components
row and column configarable components; do not work yet as containers
Configurable components may also be containers.
 - Added documentation
 - Not satisfied yet further cleanup required