Fixed loading paths.

+ Fixed loading paths follow to follow Ruby Gems'
        best practices. http://guides.rubygems.org/patterns/
+ Modified comments.
Refactoring complex methods.

+ Fixed loading paths.
+ Refactoring: Romanization, Conversion
Refactoring and Romanization detection methods.

+ Refactor: used define_method for to_ romanization methods.
+ Refactor: Use define_method for XX? detect romanization methods.
+ Added Romanization detection methods.
+ Fixed conversion_table
Version 0.11.0: Romanization methods and Regex fixes.

+ Version 0.11.0
+ ZhongwenTools::Regex: Fixed Regex.py--spaces/hyphens are optional.
+ ZhongwenTools::Regex: Fixed Regex.pyn--r5 is included.
+ ZhongwenTools::Romanization: Implemented all to_pyn methods.
+ ZhongwenTools::Romanization: Implemented all to_x methods.
+ ZhongwenTools::Romanization: Fixed mps2 methods.
+ ZhongwenTools::Romanization: Renamed zyfh? method to bpmf?
+ ZhongwenTools::Romanization: Created zyfh? alias to bpmf?
+ ZhongwenTools::Romanization::PYN_TO_PY: Added r5 tone.
Version 0.11.0: Romanization methods and Regex fixes.

+ Version 0.11.0
+ ZhongwenTools::Regex: Fixed Regex.py--spaces/hyphens are optional.
+ ZhongwenTools::Regex: Fixed Regex.pyn--r5 is included.
+ ZhongwenTools::Romanization: Implemented all to_pyn methods.
+ ZhongwenTools::Romanization: Implemented all to_x methods.
+ ZhongwenTools::Romanization: Fixed mps2 methods.
+ ZhongwenTools::Romanization: Renamed zyfh? method to bpmf?
+ ZhongwenTools::Romanization: Created zyfh? alias to bpmf?
+ ZhongwenTools::Romanization::PYN_TO_PY: Added r5 tone.