Code clean up, no change
Changed: Updated the schema for PROV-JSON
- Replaced RhinoValidator with Java-based json-schema-validator
- The schema is up-to-date and also checks for valid literals
Merge branch 'xml-fix' of github.com:lucmoreau/ProvToolbox into xml-fix
Tidy up
Merge branch 'master' into xml-fix

Conflicts:
	prov-json/src/main/java/org/openprovenance/prov/json/JSONConstructor.java
	prov-json/src/main/java/org/openprovenance/prov/json/ProvDocumentDeserializer.java
	prov-json/src/test/java/org/openprovenance/prov/json/RoundTripFromJavaTest.java
Changed: PROV-JSON schema now supports bundle, mention
- Fixed: PROV-JSON schema's support for specialization, alternate,
dictionaryMembership
- Added schema test for round-trip test cases
Merge pull request #84 from trungdong/xml-fix

Updated PROV-JSON schema
Merge branch 'xml-fix'