Changelog for apecs-stm-0.3

[0.3]

Reverting the 0.2 changes around EntityCounter and taking the codebase back to the 0.1.5 state.

Added

[0.2]

Removed

Changed

[0.1.5]

Changed

[0.1.4]

Add

[0.1.3]

Changed

[0.1.2]

Changed

[0.1.0]

Added