4.0.0

Changes

• First iteration of command parsing is now live! Build and battlegroup selection commands are being parsed, and all other commands are being parsed into a generic unknown command entity until further command support is added. See note below for potentially breaking impact of this change.
• You can now access commands, build_commands, and battlegroup helper methods on the Player entity.

Breaking Changes

• While the above are not strictly breaking changes, this modifications result in a drastically larger payload size when serializing replays to JSON. Because of this, applications that take advantage of the serde feature should be diligent when updating to ensure performance is not negatively affected.