added: IFilter, FilterContainer as util/basic/filter/
fixed: changed const position.
fixed: divided IGlobalAlert.mkChild to IGlobalAlertMakable.
commented: ITaskIterator.hasNext, next's call order.
commented: about NicoTubeDatabaseFacade's pop return value be null possibility.
repaired RankLoadTaskProcessor's logger prefix string.
gitignore: added tempoo and tempoo/
fixed: ExampleRankLoad~ 's storage path to tempoo.
added: ExampleTaskParams and slimmed ExampleRankLoadTaskProcessor.
bug-fixed: using-Some-instead-of-Option-bug fixed.
bug-fixed: in TaskProcessor. important bug, which
in case itr.hasNext is false after call TaskProcessor.start, it start wait in main-thread.