adds an optional text-only ui node inside the simulation node in both cyclus schema files. this should be an initial fix for @flanflanagan's issues.
Merge branch 'gidden-ui' into develop
LAZY to NOW
removed print debugging
Merge pull request #1020 from scopatz/dl

Fix for cyclus -a for Brightlite et al.
initial work on metadata cli arg
switched to using json values
removed cout
a little streamlining
using local var s
removed old decls