Updated the TransformingParseTreeListener so that it now stores the modified token strings it's self.
Moved the InPlaceModifiableString into this project because it is specific to the ANTLR4 implementations.
Updated the project to use the new generic Transformations. This has required the moving of the CompoundTransformations and CompositeTokenTransformation classes down into this project.
Renamed all instances of the word applyer to applier.