Please prefix all commit summaries with one (or more) of the following labels. This should help others to easily classify the commits into meaningful categories:
- BF : bug fix
- RF : refactoring
- NF : new feature
- BW : addresses backward-compatibility
- OPT : optimization
- BK : breaks something and/or tests fail
- PL : making pylint happier
- DOC: for all kinds of documentation related commits
- TEST: for adding or changing tests