made JSON printing context deal properly with printing of UTF-8 strings with embedded Unicode code points
split off forward declarations for value description
added test case for JSON printing/parsing of UTF8 strings
ValueDescription<void> -> ValueDescription, ValueDescription<T> -> ValueDescriptionT<T>
Restructuring of value description to support JS underway
major improvements in value descriptions, allowing for to/from JS converters for basic types to be automatically generated
Merge branch 'master' of github.com:datacratic/soa into openrtb-staging
added get support to HTTP rest proxy and refactored class out into a separate file.  Added documentation and to/from JSON converters for port ranges
Merge branch 'openrtb-staging'