tst: issue379 allow hash with @base directive
fix: issue379 comment out base hash check
tst: check that the file parsed
tst: drop assertIsInstance check as not in py 2.6
tst: add py2.6 support for isInstance check.
Merge pull request #407 from nicholsn/master

Allow @base URI to have a trailing hash '#'
Move Store API to work with identifiers, not graphs

All add/remove methods now raise an Exception if passed a graph.
The Graph API works on Graph objects and will pack/unpack as required.