fixed: for handling Transaction's invalid receive.
fixed: Status.
added: VideoEntriesFacade, NotesFacade.
NotesFacade completed, VideoEntriesFacade incompleted.
fixed: import for implicit, posfixOps because of caution.
this was found by adding '-feature' build option.
fixed: added NicoTubeDatabase.getPriorVideoEntries's 2nd optional parameter.
fixed: Status's some type. for more fit to VideoEntries db.
fixed: completed VideoEntriesFacade. (but not checked yet).