Updated example IPython notebook.
Added 0.7.1dev dist. Removed dist from .gitignore.

Fixed typo in README.txt.
v0.8dev, see CHANGES.txt

- Removed Variable.get_assignments() and instead made Variable emulate sequence types for tuple unpacking
- Completed Assignment tests
- Added MarginalTable multiplication tests
- Added ConditionalTable tests
- Allowed construction of Assignment from a SingleAssignment instance (as opposited to having to create a sequence with one instance of SingleAssignment) so
    a = Assignment(A<<True)
  works without having to do
    a = Assignment([A<<True])
  which also works
- Renamed JointTable to MarginalTable
- Added MarginalTable multiplication with MarginalTable
- Added ConditionalTable multiplication with MarginalTable
- Added an all_variables member to ConditionalTable
- Fixed item getting and setting keying for ConditionalTable, allows specification of variables without explicit specification of which ones are context or not
- Added repository and package links to README
- Added TODO section to README
- Added References section to README
- Renamed bn_test.ipynb to basics.ipynb
- Added markdown files to MANIFEST.in
- Added symbolic link to module in bin/examples
- Added some distribution archives
- Changed package URL to GitHub repo URL
Forgot to increment module version number.
Clean up.