Merged MethodReplacer.
Marked ClassManager as Singleton
Fixed a string conversion error.
Added documents.
Fixed string conversion error in StringUtil::mkString when an array is passed.
Rename a method.
Improved StringUtil::arrayToReadableString.
Updated README.md
Added StringUtil::methodArgsToReadableString
Updated README.md
Updated README.md
Updated README.md
Updated README.md
Updated README.md