Attribute expansion

// Available for all game versions
%attribute_player_has_<attribute>%          - whether the player has a certain attribute
%attribute_player_baseValue_<attribute>%    - returns the base value of an attribute
%attribute_player_value_<attribute>%        - returns the value of an attribute with all the modifiers applied

// 1.11+
%attribute_player_defaultValue_<attribute>% - returns the default value of an attribute