Expanding imports

bug fix

small bugs related to grammar and component states

patch on string clauses

Patch on string clauses

Patches for Strange Loop

Bellmar/system assert bug (#42)

* should be * instead of ? in grammar

* string rules are treated as globals so check for them too

* cleaning up some of the edge cases for output

* flaky test thanks to old nemisis iterating over a map

* unclear why this was written this way alas

better model output

String support

accessing history through indexes