This release adds a new query strategy, improves the docs, and cleans up the interfaces in preparation of v1.0.0.

Added

Changed

Cleaned up and unified argument naming: The naming of variables related to datasets and
indices has been improved and unified. The naming of datasets had been inconsistent,
and the previous x_ notation for indices was a relict of earlier versions of this library and
did not reflect the underlying object anymore.
- PoolBasedActiveLearner:
  - attribute x_indices_labeled was renamed to indices_labeled
  - attribute x_indices_ignored was unified to indices_ignored
  - attribute queried_indices was unified to indices_queried
  - attribute _x_index_to_position was named to _index_to_position
  - arguments x_indices_initial, x_indices_ignored, and x_indices_validation were
    renamed to indices_initial, indices_ignored, and indices_validation. This affects most
    methods of the PoolBasedActiveLearner.
- QueryStrategy
  - old: query(self, clf, x, x_indices_unlabeled, x_indices_labeled, y, n=10)
  - new: query(self, clf, dataset, indices_unlabeled, indices_labeled, y, n=10)
- StoppingCriterion
  - old: stop(self, active_learner=None, predictions=None, proba=None, x_indices_stopping=None)
  - new: stop(self, active_learner=None, predictions=None, proba=None, indices_stopping=None)
Renamed environment variable which sets the small-text temp folder from ALL_TMP to SMALL_TEXT_TEMP