materialize implementation and and optimization
fix overshoot and optimize better
bounds errors
redo data structure for sensibility
Fix the integration test from crashing

Sessions are expected to only have one running query (perhaps this is a
bug). So we need to make a new session for each of the benchmark runs,
timing only the running part.
Merge branch 'fix_integration' into materializer_iterator
remove lead-in parsing test
Merge pull request #100 from barakmich/fix_integration

Fix the integration test from crashing
Merge branch 'master' into materializer_iterator
Copy refs and comment on Value
Merge pull request #101 from barakmich/materializer_iterator

Add Materialize Iterator
Fix hashability for graph.Value
Fix ID Lookup
comment
Merge pull request #103 from barakmich/materializer_iterator

Fix Materializer iterator
rename Hashable/Hasher
Merge branch 'materializer_iterator'
Key/Keyer
update readme