Add study IDs to RDF

?o http://trials.drugis.org/partOfStudy http://trials.drugis.org/study/?studyId
Get started on ADDIS -> RDF/TriG importer
Import some study characteristics
Import some more!
Turtle: RDF collections and anonymous objects
Basic study design import
Unit test the turtle/trig generation
Add script for hypertension dataset
Refactor: DSL for Turtle/TriG
Add graphs to the DSL
Proper string encoding for literals
Formatting
Improve RDF structure

 - Labels for various things within studies
 - Activities refer to arm/epoch pairs
Example queries
More readable arms matching query
Ordered epochs
Define primary epochs
Consistently underscore predicate names
Detect undefined prefixes
Remove lame namespaces