In OperationTransformMatrix.js move all utility methods before the real transformation methods
Extend OT matrix with methods for op "ApplyDirectStyling"
Make directTextStyler no longer optional, now that it works also in collab mode
Add TransformerTests (to test directly resulting opspecs, not execution consistency)

Useful for ApplyDirectStyling vs. ApplyDirectStyling, as that in the current
simple implementation will result in inconsistent DOMs (e.g. names of automatic styles)
Merge pull request #181 from kossebau/supportDirectTextStylingOT

Support direct text styling in collab mode