[DOC] Fixed and extended the docu around MatrixScore.
The world’s best formatted scoring tables!
typedefs
Rename “private” tags to by defining new typedefs. This is backward compatible. Adapted the documentation
Changed .cpp to .txt. result is the same
Merge pull request #280 from meiers/MatrixScoreDocumentation

[DOC] Fixed and extended the docu around MatrixScore.