[Bug] - Single quotes / apostrophe for comment parsing in YamlFileFactory

[Cinnazeyy]

The current implementation of the YamlFileFactory saves comments as normal properties, such that bukkit doesnt automatically delete it when saving the file.

COMMENT_0: '--------------------'

Note that it uses ' instead of the more typical ", which effectively prevents us from ever using an apostrophe in any comments.
This isn't really a big issue but it would still be great to get it fixed!