Implemented named variable access to frame contents via DNU.
Implemented named variable access to frame contents via DNU.

briantrice/slate-language,krfkeith/slate-language,krfkeith/slate-language,krfkeith/slate-language,krfkeith/slate-language,briantrice/slate-language,briantrice/slate-language,briantrice/slate-language,briantrice/slate-language,krfkeith/slate-language,krfkeith/slate-language,briantrice/slate-language