* Refactored achievements to utilize C++ features
* Cleaned up the YAML parser.
* Moved achievements from DBMap to an unordered_map.
* Moved achievement targets from DBMap to a vector.
* Changed all struct arrays into vectors.
* Changed all char arrays to strings.
* Changed all int arrays to std::arrays.
* Removed achievement_dummy as it's no longer needed.
* Achievements now use smart pointer to ensure proper construction and deconstruction of objects.
Thanks to @lighta!
* Information based on kRO patch notes.
- http://ro.gnjoy.com/news/update/View.asp?seq=163&curpage=1
* Includes Title System which is integrated into the Achievement System.
* Includes RODEX integration for rewards.
* Added new atcommand reloadachievementdb.
* Added new script commands achievementinfo, achievementadd, achievementremove, achievementcomplete, and achievementexists.
Thanks to @Lux-uri, @RagnarokNova, @Lemongrass3110, and @Tokeiburu for their help!
