Rdflib

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.

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).

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- Updated setup installation
- Patched to work with JSON in Python>=2.6

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- Allowed non-standard extensions (such as SPARUL).
- Exceptions fixed.
- Added another example.

Introduction of InformationStore, a TripleStore with the
addition of context support.

Resource __getitem__ now returns object (no longer returns a
Resource for the object).

Fixed bug in parser that was introduced in last release
regaurding unqualified names.

Interface realigned with last stable release.

Serializer now uses more of the abbreviated forms where
possible.

Parser optimized and cleaned up.

Added third index to InMemoryStore.

The load and parse methods now take a single argument.

Added a StringInputSource for to support parsing from strings.

Renamed rdflib.BTreeTripleStore.TripleStore to
rdflib.BTreeTripleStore.BTreeTripleStore.

Minor reorganization of mix-in classes.