0.8.10
Change set since 0.8.9:
f31665b: 0.8.10: limit entity selector filtering to selectors targeting > 1 non-player entities
cfb3684: Change translation so that they actually fit in GUI
2e40741: Shuffle the order for GUI; remember the order by using LinkedHashSet
f545ca7: Code style clean up & bug fixes
fe5ea45: Rewrite player tracker to use Data Attachment API