Fixed bug in serializer where triples where only getting serialized the first time.
Added type checking for contexts.
Fixed bug that caused comparisons with a Literal to fail when the right hand side was not a string.
Added DB_INIT_CDB flag to SCBacked for supporting multiple reader/single writer access
Changed rdf:RDF to be optional to conform with latest spec.
Fixed handling of XMLLiterals
1.3.0
Removed bag_id support and added it to OLD_TERMS.
Added a double hash for keys in SCBacked.
Fixed _HTTPClient so that it no longer removes metadata about a context right after it adds it.
Added a KDTreeStore and RedlandStore backends.
Added a StoreTester.
1.2.4
Fixed bug in SCBackend where language and datatype information where being ignored.
Fixed bug in transitive_subjects.
Updated some of the test cases that where not up to date.
async_load now adds more http header and error information to the InformationStore.
1.2.3
Fixed bug in load methods where relative URLs where not being absolutized correctly on Windows.
Fixed serializer so that it throws an exception when trying to serialize a graph with a predicate that can not be split.
1.2.2
Added an exists method to the BackwardCompatibility mixin.
Added versions of remove, remove_triples and triples methods to the BackwardCompatility mixin for TripleStores that take an s, p, o as opposed to an (s, p, o).
1.2.1
Added support for parsing XMLLiterals.
Added support for proper charmod checking (only works in Python2.3).
Fixed remaining rdfcore test cases that where not passing.
Fixed windows bug in AbstractInformationStore's run method.