- Added render_bar utility function.
- Added ProgressBar class.
- Added Info class.
- Added Inform.join_culprit method and join_culprit function.
- Allow culprit to be passed into Error.report() and Error.terminate() methods.
- Added Error.reraise method.
- Allow a codicil or codicils to be added to any informant.
- Added codicil named argument to informants and Error class.
- Added informant named argument to Error.
- Use colorscheme of active informer as default for colorizers.
- Error.get_culprit method now returns a tuple rather than a string.
- Added Error.join_culprit and Error.get_codicil methods.
