Unorganized todo list

[prettydiff]

• Document options and eliminate anything associated with beautification.
• Restructure and organize rule collections in markup's tag function (after the assignment to element)
• Unified parser error output
• Multilexing testing
• Replace array sorts with safeSort (where appropriate)
• Reorganize the style lexer. The organization of code is highly chaotic that makes maintenance a pain even if it works well.