Don't use relative imports

Relative imports make it impossible to do

    python -n rdfextras_web.endpoint

because this runs rdfextras_web/endpoint.py as __main__.
renamed rdfextras_web => rdflib_web
whitespace gardening
Flask Blueprints for endpoint/lod app and Flask 10 compatability

In Flask 10, overriding an existing url route is an error and having the
lod app override index no longer worked. I've made both apps into Flask
blueprints, this also allows them to easily be integrated into other
flask apps, see http://flask.pocoo.org/docs/blueprints/

Another minor change in Flask 10 is that sessions are now serialized as
JSON, and python sets are no longer supported. The 'picked' set is now
represented as a dict instead.

A very simple test for the lod app was added, which just makes sure most
URLs do not raise an exception.
added sphinx docs
path fixed for docs
doc update
Implementation of the Graph Store Protocol
Importing the graphstore protocol testcase

This is a copy of
http://www.w3.org/2009/sparql/docs/tests/data-sparql11/http-rdf-update/

The idea is to parse this HTML page and run the tests it contains.
Fixed w3c's testcase (hrmpf!)

Fixed missing Accept headers

Uncommented a wrong test:
This request should fail according to the testcase. To me and to my
implementation, this request looks perfectly valid.

Fixed relative URLs as path argument

Fixed response codes:
Changed several response codes. Mostly from 200 to 204 because there
is no response body.

Fixed bad turtle syntax

Added comments indicating the changes (look for 'rdflib').
Testcase parser for protocol tests

This parses all HTML files in test/endpoint_protocol and runs the
tests they contain.
Deleting spurious line
Switching to a md compatible syntax for protocol tests

This should make it much easier to write tests and it comes with
github flavour!
Adding tests for Graph, ConjunctiveGraph
Support for Graph and Conjunctive Graph

The endpoint now works with Graph, ConjunctiveGraph and Dataset or any
class implementing a compatible API.
merged uholzer-sparql11-graphstore
Fixing includes in test
Fixing SPARQL querying
Revert config["ds"] back to config["graph"], set g.graph

In order to be compatible with the rest of rdflib-web, use again
config["graph"] and set g.graph.