es_map_editor: Added show grid feature
es_map_editor: Cache changes
es_map_editor: Chop up view into smaller components
es_map_editor: use .array method instead of .field type: [Type]
es_map_editor: Moon:: prefix
debug: Debug::DataModel now pretty prints models from other models
duck: Vector arithmetic operations
duck: Removed extra Sprite render argument (index)
duck: Font now prints the given str "quoted"
state_mvc: #post_init conflicts with DataModel and RenderContainer, use #start instead
es_map_editor: MapRenderers#chunk_renderer_class
es_map_editor: EditorMap, added missing Moon:: prefix
es_map_editor: controller update
core/entity_system > entity_system
core: Eventable accepts Enumerable objects for keys
core: Added Hash#values_of and Hash#fetch_multi
core: to_vec* methods
core: Vector distance math
data_model: mixins now use InstanceMethods and ClassMethods submodules for features
debug, es: DebugShell update, history navigation

Still need to implement cursor movement