Reimplement IriHandler to use StringHasher
Add missing Mono/Number/String indexes
Build where condition for Time
Merge pull request #70 from wmde/time-where

Build where condition for Time
Merge pull request #65 from wmde/indexes

Add missing Mono/Number/String indexes
Merge pull request #63 from wmde/iri-hash

Reimplement IriHandler to use StringHasher
Drop wrong equality implementation in Time
Cleanup