CharsetConvertor: decoupled to standalone extension
CharsetConvertor: CharsetDetector decoupled
CharsetConvertor: CharsetOptionsResolver decoupled, charset names now available via constants in Encoding
CharsetConvertor: convertor now lighter
CharsetConvertor: convertFile renamed to convertFileToUtf
CharsetConvertor: tests added
Merge pull request #468 from apigen/charset-convertor

Charset convertor