added ConvertNode, ConvertTask
refactored AssignmentList -> ParamToArgMapBuilder, removed unused Assignment
refactored out ParamToArgMapper from ArgumentNodesCreator
removed duplicated test from ParamToArgMapperTest
refactored ArgumentNodesCreator to use Converters
moved ArgumentNodesCreator to .parse package
renamed StoringArtifactSmoothTest -> ArtifactSaverSmoothTest
improved assertion failure messages in FakeMessageGroup
added ArraysSmoothTest
style cleanup in ArtifactSaverSmoothTest
added FileSystem.createDir()
style fix in FakeFile
added contentOf smooth function
fixed storing empty arrays in ArtifactSaver
refactored smooth functions to use Blob instead of File wherever possible
added tests for storing Blob and Blob[] to ArtifactSaverSmoothTest
renamed Result.reulst() -> .value()
renamed Argument -> Arg, the same for friends
removed duplicated code from ParamToArgMapper