Revscoring

Changed
- Improved English badwords regexs.
- Intermediate filtered stage for mwparserfromhell wikicode.
- Makes cache preserve through `extractor.extract()` and `context.solve()`

Changed
- Speeded up dictionary features by ~2

Added
- `cpu` and `IO` config for ScoreProcessor & score utility.
- Added Hungarian language support.

Changed
- Cleaned verbose of `feature_extractor` for deleted stuff

Changed
- Made score utility faster.

Fixed
- Fixed extractor error.

Added
- Added the possibility to log in to the feature extractor.
- Implemented feature profiling
- Added Russian language utility.
- Added hashing vectorizer example notebook.
- Language assets for Hindi.

Changed
- Updated regexes to match new tests.

Fixed
- Missing commas and additional entries for English language tests.
- Updated LICENSE due to a mistake from an old copy-paste.
- Minor fix to docs for regex matcher

Fixed
- Fixed feature extraction for page creation revisions.