Added unit tests to run examples within VS (test converter source from CommonMarkSharp)
Small perf improvements
Small perf improvement, won't allow escape of unicode symbols.
~2.5% perf improvement by specifying StringComparer.Ordinal
~3.5% improvement by optimizing ParseListMarker
Cleanup
Refactored NormalizeWhitespace
Sealed syntax classes
NormalizeReference changed to make use of NormalizeWhitespaces
Changed the version number