integrated heirarchal data processing (ported V::C::Document)
trivial update, removed extra newline
added adopt keyword to allow copying of configuration objects to and from classes
updated documentation for the validate_document functionality
updated documentation in the main module, removed the rationale section
Merge branch 'integrate-document-validation'
Merge branch 'class-configuration-adoption'
allow class to adopt document configurations from other classes
updated changes and readme files