Rename graph/graph_to_csv_spec => graph/to_csv_spec
Graph#<< returns self
Add a Graph Factory
Fact.new optionally sets the :id from a forced_id
Add full Graph Factory
Add TimeStamp.from_s(time_string)
Fact.new takes optional :time_stamp option
Fact::ID.new takes :uuid option; add a fixed_id fixture
Add Factories::TimeStamp.fixed_time_stamp
Fact::Subject.new takes a :uuid option

* Added Factories::Fact::Subject.fixed_subject
* Added Factories::Fact::Subject.fixed_provenance_subject
Add Factories::Fact.full_fact
Fact.from_values(values) values is e.g. a CSV row
Graph.from_csv reads a CSV stream (file or streamIO)
Version 0.0.6 can read back a Graph from a CSV file