Using ask pattern for actors.
Families now write completed BellExpressions.
Added completed method to BellExpressionComputations to add all automatically generated properties.
Added stream methods to Yaml.scala
CompositeExtractor now supports all representations (untested!).
Removed boxes support from SmallScenarios.
Completed fs module, with full support for BinFolder multiple divisions.
Completer and Writer can also be used to complete expressions in place.