Tvd

- fix: require pyannote.core 0.0.5 (with fixed JSON I/O)

- fix: change resource directory to 'metadata'

- BREAKING CHANGE: rename section 'www' section to (more generic) 'resources'
- feat: get_resource can load from disk
- fix: several bugs in `tvd.create` reproduction script

- chore: get rid of AnnotationGraph in favor of pyannote.core.Transcription

- feat(AnnotationGraph): crop() method for visualizing large graphs
- fix: IPython Notebook SVG display with "&"
- fix: T (TAnchored, TFloating) comparisons

- fix: missing HTML characters mapping
- fix: IPython Notebook SVG display with non-ASCII characters